Easter

We left the story of Jesus of Nazareth last Friday. He had been executed in the most painful and degrading way possible. His closest followers were dispersed and in hiding. It must have seemed that Jesus and his movement had ended in utter failure. But then, something remarkable happened. This something is commemorated by the Easter holiday. Although Christmas is the more popular Christian holiday, Easter is actually the most important holiday in the liturgical year as the celebration of Christ’s resurrection is theologically more important than his Nativity. But I am getting ahead of myself.

The Gospel of Mark has the most concise account of what happened that first Easter.

1 When the Sabbath was over, Mary Magdalene, Mary the mother of James, and Salome bought spices so that they might go to anoint Jesus’ body. 2 Very early on the first day of the week, just after sunrise, they were on their way to the tomb 3and they asked each other, “Who will roll the stone away from the entrance of the tomb?”

4 But when they looked up, they saw that the stone, which was very large, had been rolled away. 5 As they entered the tomb, they saw a young man dressed in a white robe sitting on the right side, and they were alarmed.

6 “Don’t be alarmed,” he said. “You are looking for Jesus the Nazarene, who was crucified. He has risen! He is not here. See the place where they laid him. 7 But go, tell his disciples and Peter, ‘He is going ahead of you into Galilee. There you will see him, just as he told you.’”

8 Trembling and bewildered, the women went out and fled from the tomb. They said nothing to anyone, because they were afraid.

9 When Jesus rose early on the first day of the week, he appeared first to Mary Magdalene,out of whom he had driven seven demons.10 She went and told those who had been with him and who were mourning and weeping.11 When they heard that Jesus was alive and that she had seen him, they did not believe it.

12 Afterward Jesus appeared in a different form to two of them while they were walking in the country.13 These returned and reported it to the rest; but they did not believe them either.

14 Later Jesus appeared to the Eleven as they were eating; he rebuked them for their lack of faith and their stubborn refusal to believe those who had seen him after he had risen.

15 He said to them, “Go into all the world and preach the gospel to all creation.16 Whoever believes and is baptized will be saved, but whoever does not believe will be condemned.17 And these sign swill accompany those who believe: In my name they will drive out demons;they will speak in new tongues;18 they will pick up snakes with their hands; and when they drink deadly poison, it will not hurt them at all; they will place their hands on sick people, and they will get well.”

19 After the Lord Jesus had spoken to them, he was taken up into heaven and he sat at the right hand of God.20 Then the disciples went out and preached everywhere, and the Lord worked with them and confirmed his word by the signs that accompanied it. (Mark 16:1-20)

Mark 16:9-20 seems to be a later addition. At any rate, the earliest manuscripts do not have those verses. Whether the original ending has been lost or Mark intended to end his account so abruptly is unknown.

Matthew has more details.

1After the Sabbath, at dawn on the first day of the week, Mary Magdalene and the other Mary went to look at the tomb.

2 There was a violent earthquake, for an angel of the Lord came down from heaven and, going to the tomb, rolled back the stone and sat on it. 3 His appearance was like lightning, and his clothes were white as snow. 4 The guards were so afraid of him that they shook and became like dead men.

5 The angel said to the women, “Do not be afraid, for I know that you are looking for Jesus, who was crucified. 6 He is not here; he has risen, just as he said. Come and see the place where he lay. 7 Then go quickly and tell his disciples: ‘He has risen from the dead and is going ahead of you into Galilee. There you will see him.’ Now I have told you.”

8 So the women hurried away from the tomb, afraid yet filled with joy, and ran to tell his disciples. 9 Suddenly Jesus met them. “Greetings,” he said. They came to him, clasped his feet and worshiped him. 10 Then Jesus said to them, “Do not be afraid. Go and tell my brothers to go to Galilee; there they will see me.”

The Guards’ Report

11 While the women were on their way, some of the guards went into the city and reported to the chief priests everything that had happened. 12 When the chief priests had met with the elders and devised a plan, they gave the soldiers a large sum of money, 13 telling them, “You are to say, ‘His disciples came during the night and stole him away while we were asleep.’ 14 If this report gets to the governor, we will satisfy him and keep you out of trouble.” 15So the soldiers took the money and did as they were instructed. And this story has been widely circulated among the Jews to this very day.

The Great Commission

16 Then the eleven disciples went to Galilee, to the mountain where Jesus had told them to go. 17 When they saw him, they worshiped him; but some doubted. 18 Then Jesus came to them and said, “All authority in heaven and on earth has been given to me. 19 Therefore go and make disciples of all nations, baptizing them in the name of the Father and of the Son and of the Holy Spirit, 20 and teaching them to obey everything I have commanded you. And surely I am with you always, to the very end of the age.” (Matt 28:1-20)

Luke and John have more to say of Jesus after His resurrection but I won’t quote them here.

The date of Easter has been a matter of some controversy in past centuries. The date of Easter is related to the date of Passover. The calculations on which the date of Easter is determined are based on a lunisolar cycle like the date of Passover but the cycle is not the Hebrew calendar. Generally, Easter falls about a week after Passover but it occurs about a month later in three years of the nineteen-year cycle. Various groups of Christians have had different methods of calculating Easter over the years and these differences have led to bitter disputes. There is still a different date for Easter among the Eastern churches since they use the Julian calendar for the liturgical year while Catholics and Protestants use the Gregorian calendar.

Among Catholics and some Protestants, Easter is generally celebrated by an Easter vigil beginning the previous evening. At dawn, a mass or service begins, etc.

And, of course, many people celebrate Easter by finding Easter eggs and eating candy delivered by the Easter Bunny.

Good Friday

Today is Good Friday, the day of Jesus’s crucifixion. It may seem strange to call it “Good” Friday since being crucified wouldn’t normally be considered as part of a good day but the word good is used in an obsolete sense meaning holy. Good Friday is generally celebrated with fasts and vigils. In the Roman Catholic church, no mass is held on this day.

Once again, I will be using the Gospel of Mark to tell the story.

Mark 15

1Very early in the morning, the chief priests, with the elders, the teachers of the law and the whole Sanhedrin, made their plans. So they bound Jesus, led him away and handed him over to Pilate.

2 “Are you the king of the Jews?” asked Pilate.

“You have said so,” Jesus replied.

3 The chief priests accused him of many things. 4 So again Pilate asked him, “Aren’t you going to answer? See how many things they are accusing you of.”

5 But Jesus still made no reply, and Pilate was amazed.

6 Now it was the custom at the festival to release a prisoner whom the people requested. 7 A man called Barabbas was in prison with the insurrectionists who had committed murder in the uprising. 8 The crowd came up and asked Pilate to do for them what he usually did.

9 “Do you want me to release to you the king of the Jews?” asked Pilate, 10 knowing it was out of self-interest that the chief priests had handed Jesus over to him. 11 But the chief priests stirred up the crowd to have Pilate release Barabbas instead.

12 “What shall I do, then, with the one you call the king of the Jews?” Pilate asked them.

13Crucify him!” they shouted.

14 “Why? What crime has he committed?” asked Pilate.

But they shouted all the louder, “Crucify him!”

15 Wanting to satisfy the crowd, Pilate released Barabbas to them. He had Jesus flogged, and handed him over to be crucified. (Mark 15:1-15)

It would seem that this meeting of the Sanhedrin at night and before Passover was highly irregular and some have questioned the historicity of the Gospel accounts on that basis. I think that if the elders and priests of the Sanhedrin believed Jesus to be on the point of declaring himself the Messiah and leading a rebellion, they might not have been too concerned with fine points of legality in the face of a national emergency. Little is known of Pontius Pilate but in the historical accounts of Josephus and others, he does not seem to be the sort of man who had any scruples about putting a trouble maker to death even if he wasn’t certain of the man’s guilt. It is possible that he was impressed by Jesus’s force of personality. On the other hand, Josephus makes it clear that Pilate was a tactless man who did not like the Jews much. He was eventually recalled because his actions seemed likely to cause rebellions. Perhaps Pilate resented having the High Priest and others, who he might have considered semi-barbarians, insist on his crucifying a man he believed to be innocent. He might have refused just to be obstinate.

16 The soldiers led Jesus away into the palace (that is, the Praetorium) and called together the whole company of soldiers. 17 They put a purple robe on him, then twisted together a crown of thorns and set it on him. 18 And they began to call out to him, “Hail, king of the Jews!” 19 Again and again they struck him on the head with a staff and spit on him. Falling on their knees, they paid homage to him. 20And when they had mocked him, they took off the purple robe and put his own clothes on him. Then they led him out to crucify him.

The Crucifixion of Jesus

21 A certain man from Cyrene, Simon, the father of Alexander and Rufus, was passing by on his way in from the country, and they forced him to carry the cross. 22 They brought Jesus to the place called Golgotha (which means “the place of the skull”). 23 Then they offered him wine mixed with myrrh, but he did not take it. 24And they crucified him. Dividing up his clothes, they cast lots to see what each would get.

25 It was nine in the morning when they crucified him. 26 The written notice of the charge against him read: THE KING OF THE JEWS.

27 They crucified two rebels with him, one on his right and one on his left. [28][a]29 Those who passed by hurled insults at him, shaking their heads and saying, “So! You who are going to destroy the temple and build it in three days, 30 come down from the cross and save yourself!” 31 In the same way the chief priests and the teachers of the law mocked him among themselves. “He saved others,” they said, “but he can’t save himself! 32 Let this Messiah, this king of Israel, come down now from the cross, that we may see and believe.” Those crucified with him also heaped insults on him.(Mark 15:16-32)

Luke has one of the thieves taking Jesus’s side.

39 One of the criminals who hung there hurled insults at him: “Aren’t you the Messiah? Save yourself and us!”

40 But the other criminal rebuked him. “Don’t you fear God,” he said, “since you are under the same sentence? 41 We are punished justly, for we are getting what our deeds deserve. But this man has done nothing wrong.”

42 Then he said, “Jesus, remember me when you come into your kingdom.[d]

43 Jesus answered him, “Truly I tell you, today you will be with me in paradise.” (Luke 23:39-43)

Crucifixion is probably the most painful method of execution ever devised. The victim is slowly asphyxiated as he hangs on the cross. It was not uncommon for a man to linger for days writhing in pain the whole time. In addition to the pain, crucifixion was meant to be a humiliating, shameful punishment. Only the lowest of the low were crucified, which might have been a stumbling block to early Christian proselytizing.

33 At noon, darkness came over the whole land until three in the afternoon. 34 And at three in the afternoon Jesus cried out in a loud voice, “Eloi, Eloi, lema sabachthani?” (which means “My God, my God, why have you forsaken me?”).[b]

35 When some of those standing near heard this, they said, “Listen, he’s calling Elijah.”

36 Someone ran, filled a sponge with wine vinegar, put it on a staff, and offered it to Jesus to drink. “Now leave him alone. Let’s see if Elijah comes to take him down,” he said.

37 With a loud cry, Jesus breathed his last.

38 The curtain of the temple was torn in two from top to bottom. 39 And when the centurion, who stood there in front of Jesus, saw how he died,[c] he said, “Surely this man was the Son of God!”

40 Some women were watching from a distance. Among them were Mary Magdalene, Mary the mother of James the younger and of Joseph,[d] and Salome. 41 In Galilee these women had followed him and cared for his needs. Many other women who had come up with him to Jerusalem were also there.

Those words were the first verse of Psalm 22. Matthew’s account parallels Mark’s but Luke and John report different last words.

46 Jesus called out with a loud voice, “Father, into your hands I commit my spirit.”[e] When he had said this, he breathed his last.  (Luke 23:46)

28 Later, knowing that everything had now been finished, and so that Scripture would be fulfilled, Jesus said, “I am thirsty.” 29 A jar of wine vinegar was there, so they soaked a sponge in it, put the sponge on a stalk of the hyssop plant, and lifted it to Jesus’ lips. 30 When he had received the drink, Jesus said, “It is finished.” With that, he bowed his head and gave up his spirit.(John 19:28-30)

John adds another detail.

31 Now it was the day of Preparation, and the next day was to be a special Sabbath. Because the Jewish leaders did not want the bodies left on the crosses during the Sabbath, they asked Pilate to have the legs broken and the bodies taken down. 32 The soldiers therefore came and broke the legs of the first man who had been crucified with Jesus, and then those of the other. 33 But when they came to Jesus and found that he was already dead, they did not break his legs. 34 Instead, one of the soldiers pierced Jesus’ side with a spear, bringing a sudden flow of blood and water. 35 The man who saw it has given testimony, and his testimony is true. He knows that he tells the truth, and he testifies so that you also may believe. 36 These things happened so that the scripture would be fulfilled: “Not one of his bones will be broken,”[c]37 and, as another scripture says, “They will look on the one they have pierced.” (John 19:31-37)

Strange as it may seem, the breaking of their legs was an act of mercy since they would die sooner. It was surprising that Jesus had died after only being about six hours on the cross.

42 It was Preparation Day (that is, the day before the Sabbath). So as evening approached, 43 Joseph of Arimathea, a prominent member of the Council, who was himself waiting for the kingdom of God, went boldly to Pilate and asked for Jesus’ body. 44 Pilate was surprised to hear that he was already dead. Summoning the centurion, he asked him if Jesus had already died. 45 When he learned from the centurion that it was so, he gave the body to Joseph. 46 So Joseph bought some linen cloth, took down the body, wrapped it in the linen, and placed it in a tomb cut out of rock. Then he rolled a stone against the entrance of the tomb. 47 Mary Magdalene and Mary the mother of Joseph saw where he was laid. (Mark 15:42-47)

To anyone on the scene, this must have seemed the end of the matter. Jesus of Nazareth was dead and his followers scattered. It would seem that, at best, he would only be a minor footnote in history.

 

Holy Thursday

Today is Holy or Maundy Thursday, when many Christians celebrate the Last Supper.

The Lord’s Supper

12On the first day of the Feast of Unleavened Bread, when it was customary to sacrifice the Passover lamb, Jesus’ disciples asked him, “Where do you want us to go and make preparations for you to eat the Passover?”

13 So he sent two of his disciples, telling them, “Go into the city, and a man carrying a jar of water will meet you. Follow him. 14 Say to the owner of the house he enters, ‘The Teacher asks: Where is my guest room, where I may eat the Passover with my disciples?’ 15 He will show you a large upper room, furnished and ready. Make preparations for us there.”

16 The disciples left, went into the city and found things just as Jesus had told them. So they prepared the Passover.

17 When evening came, Jesus arrived with the Twelve. 18 While they were reclining at the table eating, he said, “I tell you the truth, one of you will betray me—one who is eating with me.”

19 They were saddened, and one by one they said to him, “Surely not I?”

20 “It is one of the Twelve,” he replied, “one who dips bread into the bowl with me. 21 The Son of Man will go just as it is written about him. But woe to that man who betrays the Son of Man! It would be better for him if he had not been born.”

22 While they were eating, Jesus took bread, gave thanks and broke it, and gave it to his disciples, saying, “Take it; this is my body.”

23 Then he took the cup, gave thanks and offered it to them, and they all drank from it.

24 “This is my blood of the[covenant, which is poured out for many,” he said to them. 25 “I tell you the truth, I will not drink again of the fruit of the vine until that day when I drink it anew in the kingdom of God.”

26 When they had sung a hymn, they went out to the Mount of Olives.

Jesus Predicts Peter’s Denial

27“You will all fall away,” Jesus told them, “for it is written:

“‘I will strike the shepherd,
and the sheep will be scattered.’

28 But after I have risen, I will go ahead of you into Galilee.”

29 Peter declared, “Even if all fall away, I will not.”

30 “I tell you the truth,” Jesus answered, “today—yes, tonight—before the rooster crows twice you yourself will disown me three times.”

31 But Peter insisted emphatically, “Even if I have to die with you, I will never disown you.” And all the others said the same. (Mark 14:12-31)

Blocking the Sun

The sixth century AD was not a lot of fun for most people, especially in Europe. The Roman Empire had definitely fallen, at least in the West. With that fall came barbarian invasions, endless wars, economic decline, trade collapse, and infrastructure deterioration. The year 536 was the worst year of a bleak century. In fact, the year 536 might well be the worst in recorded history.

A mysterious fog plunged Europe, the Middle East, and parts of Asia into darkness, day and night—for 18 months. “For the sun gave forth its light without brightness, like the moon, during the whole year,” wrote Byzantine historian Procopius. Temperatures in the summer of 536 fell 1.5°C to 2.5°C, initiating the coldest decade in the past 2300 years. Snow fell that summer in China; crops failed; people starved. The Irish chronicles record “a failure of bread from the years 536–539.” Then, in 541, bubonic plague struck the Roman port of Pelusium, in Egypt. What came to be called the Plague of Justinian spread rapidly, wiping out one-third to one-half of the population of the eastern Roman Empire and hastening its collapse

What happened? The most widely accepted theory is that a volcano erupted in Iceland and emitted ash and dust into the atmosphere. This volcanic debris blocked enough sunlight to cause the Earth to cool as much as 4 to 5 degrees Fahrenheit. Such a decline in temperature caused a devastating decline in agricultural productivity throughout the Northern Hemisphere leading to famine and plague. It took centuries for the population and economies of European and Asian states to recover.

The year 1816 was known as the Year without a Summer.

In the summer of 1816, the Northern Hemisphere was plagued by a weather disruption of seemingly biblical proportions. Following a relatively ordinary early spring, temperatures in the eastern United States plunged back below freezing, and communities from New England to Virginia experienced heavy snowfalls and crop-killing frost during June, July and August. Europe also found itself in the grip of an unseasonable chill. Winter snows refused to melt, and between April and September, some parts of the Continent were drenched by as many as many as 130 days of rain. The unrelenting gloom inspired author Mary Shelley to write her famous novel “Frankenstein,” but it also wreaked havoc on farmers. Crops failed across Europe and China, spawning deadly famines and outbreaks of typhus and other diseases. In India, the disturbances gave rise to a virulent new strain of cholera that eventually killed millions. The suffering in the United States was less pronounced, but many still felt the squeeze of soaring grain prices. Some poorer Americans were even reduced to eating hedgehogs and scrounging for wild turnips.

This time, a volcano erupted in Indonesia. Mount Tambora emitted ash and dust into the atmosphere. The volcanic debris blocked sunlight, causing the Earth to cool by .7 to 1 degree Fahrenheit, again causing a devastating decrease in agricultural productivity. 1816 was not as grim as 536, but the Year Without a Summer was enough to cause food shortages worldwide. The period of global cooling may also have changed American history by encouraging thousands of people to leave New England to settle in the Midwest.

In the twelfth century BC, the longstanding civilizations of the Eastern Mediterranean and the Fertile Crescent collapsed rather suddenly. Historians are still not certain what caused the Late Bronze Age Collapse. Many factors contributed to the Collapse, but it is possible that it was triggered by a volcanic eruption that emitted dust and ash into the atmosphere. This volcanic debris blocked sunlight causing the Earth to cool.

Do you begin to see a pattern here? Let’s not forget that the most widely accepted theory for the cause of the extinction of the Dinosaurs is that an asteroid hit the Earth, throwing tons of dust into the atmosphere. This dust blocked sunlight and caused the Earth to cool.

Clearly, any decrease in the amount of sunlight that reaches the Earth’s surface results in disaster for life and civilization. With that in mind, surely only a madman would suggest we pump aerosols into the atmosphere to block sunlight. This is precisely what some very influential people plan to do to fight climate change.

Bill Gates’s radical plan to “save the planet” from “climate change” by blocking out the Sun has officially launched as scientists began pumping chemicals into the sky this week.

As Slay News has previously reported, Bill Gates has long been advocating for the plan to fight “global warming” using experimental geoengineering to block the Sun.

The idea, promoted by Gates and leftist billionaire George Soros, involves pumping manmade white clouds into the atmosphere to reflect sunlight away from the planet’s surface.

The radical scheme would lower the planet’s temperature and allegedly “combat global warming.”

Soros claims the technology will help to prevent ice sheets from melting.

Ice sheets melting in Greenland in particular, he claimed, could doom human civilization.

“Our civilization is in danger of collapsing because of the inexorable advance of climate change,” Soros said.

“The melting of the Greenland ice sheet would increase the level of the oceans by seven meters.

“That poses a threat to the survival of our civilization,” he alleged.

The method pushed by Bill Gates involves increasing aerosol concentrations in the stratosphere to reflect solar radiation away from the Earth.

The people proposing this plan are either insane or evil. Most likely they are both. They are mad enough to believe they can control the climate. They are evil enough to aspire to become the worst mass murderers in history. If this plan is implemented, we will see a repeat of some of the worst years in history. Millions could die of starvation. We will not have to worry about the imaginary threat of global warming. We will experience the very real threat of global cooling. We will not have to worry about the ice sheets of Greenland melting. We will have to worry about the polar ice caps advancing down North America and Eurasia.

This is a really bad idea

I do not remember ever being asked to vote on this madcap scheme. There has certainly been little public discussion of the concept. Even if the idea of blocking sunlight to fight global warming was sound, I think implementing actions that might drastically alter the Earth’s climate ought to be decided in some form of democratic manner. It definitely ought not to be decided by a handful of powerful oligarchs whose wealth will protect them from the consequences of their folly.

The Gates-Soros plan to bring about a new ice age is as mad as it is evil. It has to be stopped.

 

Palm Sunday

Today is Palm Sunday, the Sunday before Easter. Palm Sunday commemorates Jesus’s entry into Jerusalem and the beginning of the climax of his earthly ministry.

Jesus Comes to Jerusalem as King

1 As they approached Jerusalem and came to Bethphage on the Mount of Olives, Jesus sent two disciples, 2 saying to them, “Go to the village ahead of you, and at once you will find a donkey tied there, with her colt by her. Untie them and bring them to me. 3If anyone says anything to you, say that the Lord needs them, and he will send them right away.”

4 This took place to fulfill what was spoken through the prophet:

5 “Say to Daughter Zion,
‘See, your king comes to you,
gentle and riding on a donkey,
and on a colt, the foal of a donkey.’”

6 The disciples went and did as Jesus had instructed them. 7 They brought the donkey and the colt and placed their cloaks on them for Jesus to sit on. 8 A very large crowd spread their cloaks on the road, while others cut branches from the trees and spread them on the road. 9 The crowds that went ahead of him and those that followed shouted,

“Hosanna to the Son of David!”

“Blessed is he who comes in the name of the Lord!”

“Hosanna in the highest heaven!”

10 When Jesus entered Jerusalem, the whole city was stirred and asked, “Who is this?”

11 The crowds answered, “This is Jesus, the prophet from Nazareth in Galilee.” (Matt 21:1-11)

 

Palm Sunday is often celebrated by palm leaves to worshippers in churches. If palm leaves are not available locally, then other tree branches may be substituted. In many churches, the priest or other clergy blesses the palms and they are saved to be burned at Ash Wednesday the following year.

The actual date of Palm Sunday, like Easter, varies from year to year because the date is based on a lunisolar cycle like the Hebrew calendar. The date differs between Western and Eastern Christianity because most Eastern churches still use the Julian calendar for their liturgical year, even though the Gregorian calendar is universally used for civil purposes.

Palm Sunday begins Holy Week or the last week of Lent.

 

Jesus entering Jerusalem on a donkey
Jesus entering Jerusalem on a donkey (Photo credit: Wikipedia)

 

 

St. Patrick’s Day

Today is St. Patrick‘s day and I thought it might be appropriate to write about St. Patrick. So, who is St. Patrick and why does he get a day? Not very much is known for certain about his life. It is possible that his story has been confused with one Palladius, a missionary who became the first bishop of Ireland. Still, Patrick wrote a short autobiography called “The Declaration” or “The Confession” as part of a letter which seems to be genuine.

Get out snakes!

Patrick, or Patricius was a Roman who lived in Britain. He may have been born around 387 and lived until 460 or possibly 493, so he lived during the twilight of the Roman Empire in the West. At the age of 16 he was captured by raiders and enslaved. He worked as a shepherd in Ireland for about six years. He managed to escape and return to his home, but then he became a priest and returned to the land where he was a slave and worked to convert the pagans to Christianity. He seems to have been very successful during his lifetime, though there were many other missionaries in Ireland. He helped to organize the Church in Ireland and is supposed to have traveled to Rome to seek the Pope’s assistance in this endeavor.

According to legend, Patrick died on March 17, so that date has become his feast day. He has never been officially canonized by the Roman Catholic Church. He became known as a saint long before the modern procedure for canonization was developed. He is, obviously, the patron saint of Ireland, and also Nigeria, Montserrat, engineers, paralegals, and the dioceses of New York, Boston, and Melbourne.

There are many legends about St. Patrick. The most widely known is that he chased all the snakes out of Ireland, thus ruining the local ecology. Another is that he used the example of the three-leaved shamrock to illustrate the trinity.

Happy St. Patrick’s Day to all the Irish, and Irish at heart, out there!

Sorry about the green text. I couldn’t resist.

Pi Day

English: Pi Pie, created at Delft University o...
English: Pi Pie, created at Delft University of Technology, applied physics, seismic and acoustics Deutsch: Pi Pie (π-Kuchen), hergestellt an der Technischen Universität Delft (Photo credit: Wikipedia)

For all of the nerds out there, including me, today is International Pi Day, the day when we celebrate our favorite mathematical constant. Pi Day is best celebrated by pi memorization contests, walking in circles, and, of course, eating pies, or is it pis? I think I will celebrate by writing a little about pi.

Pi or π is, as everyone should know, the ratio between a circle’s diameter and its circumference. Pi is an irrational number. By this, they do not mean that pi makes no sense but rather that pi is a constant that cannot be expressed as a ratio of two integers. Numbers like 2 or .445 or 1/2 can be expressed as a ratio of two integers and so are rational. Numbers like pi or the square root of any number that is not a perfect square, the square root of 2 for instance, are irrational. An irrational number expressed in decimal form never ends or repeats but continues to infinity. Thus, there can never be a last digit of pi.

The symbol π was first used by the mathematician William Jones in 1706 and was popularized by another mathematician, Leonhard Euler. They chose π, the Greek equivalent of the Latin letter p because it is the first letter of the word periphery. Π, by the way, is not pronounced “pie” in Greek but “pee”, just like our p. I don’t think that international “pee” day would be nearly so appealing.

Although the symbol for pi is relatively recent, the concept is very old. The ancient Egyptians and Babylonians knew about it. Pi is even mentioned in the Bible.

23 He made the Sea of cast metal, circular in shape, measuring ten cubits from rim to rim and five cubits high. It took a line of thirty cubits[o] to measure around it. 24 Below the rim, gourds encircled it—ten to a cubit. The gourds were cast in two rows in one piece with the Sea. (1 Kings 7:23-24)

Properly speaking, the line around the “Sea” should have been 31.5 cubits but the ancient Hebrews were not very knowledgeable about geometry and measuring techniques were crude.

There is no particular reason to calculate pi to so many digits. No conceivable application of pi would possibly take more than 40 digits. Still, the challenge of calculating pi to the farthest digit possible has been an irresistible one for mathematicians over the years.

Around 250 BC, Archimedes was the first mathematician to seriously try to calculate pi. He used a geometric method of drawing polygons inside and outside a circle and measuring their perimeters. By using polygons with more and more sides he was able to calculate pi with more precision and ended up determining the value of pi as somewhere between 3.1408 and 3.1429. Archimedes’s method was used in the West for more than eighteen hundred years. The Chinese and Indians used similar methods. The best result using the geometric method was the calculation of pi to 38 digits in 1630.

With the development of calculus by Isaac Newton and Gottfried Leibniz in the 1660s, it was possible to calculate pi using infinite series, or the sum of the terms of an infinite sequence. The best calculations with these methods were done by the mathematician Zacharias Daze who calculated pi to 200 places in 1844 and William Shanks who spent fifteen years calculating pi to 707 digits. Unfortunately, he made a mistake with the 528th digit. Meanwhile, in 1761 Johann Heinrich Lambert proved that pi is irrational.

Computers made the calculation of pi much faster so pi could be calculated to more digits. ENIAC calculated pi to 2037 places in 1949. This record didn’t last long. A million digits were reached in 1970. As of  2011, pi has been calculated to 10,000,000,000,050 places.

Pi is not just used in geometry. There are a number of applications of pi in the fields of statistics, mechanics, thermodynamics, cosmology, and many others. Here is a list of just some of the formulae that use pi. It seems you can find pi everywhere.

With that in mind then, happy pi day! For your enjoyment here are the first thousand digits of pi.

3.14159265358979323846264338327950288419716939937510
  58209749445923078164062862089986280348253421170679
  82148086513282306647093844609550582231725359408128
  48111745028410270193852110555964462294895493038196
  44288109756659334461284756482337867831652712019091
  45648566923460348610454326648213393607260249141273
  72458700660631558817488152092096282925409171536436
  78925903600113305305488204665213841469519415116094
  33057270365759591953092186117381932611793105118548
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