Good Friday, also called Holy Friday, Black Friday, or Great Friday, is a holiday observed primarily by adherents to Christianity commemorating the crucifixion of Jesus and his death at Calvary. The holiday is observed during Holy Week as part of the Paschal Triduum on the Friday preceding Easter Sunday, and often coincides with the Jewish observance of Passover. Based on the scriptural details of the Sanhedrin Trial of Jesus, the Crucifixion of Jesus was most probably on a Friday. The estimated year of Good Friday is AD 33, by two different groups, and originally as AD 34 by Isaac Newton via the differences between the Biblical and Julian calendars and the crescent of the moon. A third method, using a completely different astronomical approach based on a lunar Crucifixion darkness and eclipse model (consistent with Apostle Peter's reference to a "moon of blood" in Acts 2:20) arrives at the same date, namely Friday April 3, AD 33.

International Workers' Day (a name used interchangeably with may day) is a celebration of the social and economic achievements of the international labor movement. May Day commonly sees organized street demonstrations and street marches by millions of working people and their labour unions throughout most of the countries of the world.

The Christian doctrine of the Ascension holds that Jesus ascended to heaven in the presence of his Eleven Apostles following his resurrection, and that in heaven he sits at the right hand of God the Father. Jesus died circa 30. In the Epistle to the Romans (c. 56-57), Saint Paul describes Christ as in heaven and in the abyss[Rom. 10:5-7] the earliest Christian reference to Jesus in heaven. The most influential account of the Ascension, and according to the two-source hypothesis the earliest, is in Acts of the Apostles[1:1-11] where Jesus is taken up bodily into heaven forty days after his resurrection as witnessed by his apostles, after giving the Great Commission with a prophecy to return. In the Gospel of Luke, the Ascension takes place on Easter Sunday evening. The Gospel of John (c. 90-100) refers to Jesus returning to the Father.[Jn. 20:17] In the First Epistle of Peter (c. 90-110), Jesus has ascended to heaven and is at God's right side. Pet. 3:21-22] The Epistle to the Ephesians (c. 90-100) refers to Jesus ascending higher than all the heavens.[Eph. 4:7-13] The First Epistle to Timothy (c. 90-140) describes Jesus as taken up in glory.[Tim. 3:16] The traditional ending of Mark[16:19] includes a summary of Luke's resurrection material and describes Jesus as being taken up into heaven and sitting at God's right hand. The imagery of Jesus' Ascension is related to the broader theme of his exaltation and heavenly welcome, derived from the Hebrew Bible. The image of Jesus rising bodily into the heavens reflects the ancient view that heaven was above the earth. Belief in the Ascension of Jesus is found in the Nicene Creed, and is affirmed by Christian liturgy and, in the West, by the Apostles' Creed. The Ascension implies Jesus' humanity being taken into heaven. Ascension Day, celebrated 40 days after Easter, is one of chief feasts of the Christian year. The feast dates back at least to the later 300s, as is widely attested. The canonical account of Jesus ascending bodily into the clouds contrasts with the gnostic tradition, by which Jesus was said to transcend the physical realm and return to his home in the spirit world. It also contrasts with the beliefs of Docetism, in which matter is intrinsically evil and Jesus was said to have been pure spirit.

Corpus Christi (Latin for Body of Christ) is a Western Catholic feast. It is also celebrated in some Anglican and Lutheran churches. It honors the Eucharist, which believers consider to be the actual body and blood of Christ, and as such it does not commemorate a particular event in Jesus' life. It is held on the Thursday after Trinity Sunday or, in some places, on the following Sunday. Its celebration on a Thursday is meant to associate it with Jesus' institution of the Eucharist during the Last Supper, commemorated on Maundy Thursday, and this is the first free Thursday after Paschaltide. In the Ordinary Form of the Catholic Church, the feast is officially known as the Solemnity of the Most Holy Body and Blood of Christ. In many English-speaking countries, Corpus Christi is transferred to the Sunday after Trinity Sunday by both Catholics and Anglicans. At the end of the Mass, it is customary to have a Procession of the Blessed Sacrament (often outdoors), followed by Benediction of the Blessed Sacrament.

According to the belief of Christians of the Catholic Church, the Eastern Orthodox, and Oriental Orthodox churches and by some Anglicans, the Assumption of Mary was the bodily taking up of the Virgin Mary into Heaven at the end of her life. The Catholic Church teaches as dogma that Mary, "having completed the course of her earthly life, was assumed body and soul into heavenly glory." This doctrine was dogmatically and infallibly defined by Pope Pius XII on November 1, 1950, in his Apostolic Constitution Munificentissimus Deus. This belief is known as the Dormition by the Orthodox. In the churches which observe it, the Assumption is a major festival, commonly celebrated on August 15. In many countries it is a Catholic Holy Day of Obligation. In his August 15, 2004, homily given at Lourdes, Pope John Paul II quoted John 14:3 as one of the scriptural bases for understanding the dogma of the Assumption of Mary. In this verse, Jesus tells his disciples at the Last Supper, "If I go and prepare a place for you, I will come again, and will receive you to myself; that where I am, you may be there also." According to Catholic theology, Mary is the pledge of the fulfillment of Christ's promise.

Jean-Jacques Dessalines (Haitian Creole: Janjak Desalin) (20 September 1758 – 17 October 1806) was a leader of the Haitian Revolution and the first ruler of an independent Haiti under the 1801 constitution. He was autocratic in his rule and crowned himself Emperor of Haïti in 1805. Beginning as Governor-General, Dessalines later named himself Emperor Jacques I of Haiti (1804–1806). He is remembered as one of the founding fathers of Haiti. Dessalines served as an officer in the French army when the colony was trying to withstand Spanish and British incursions. Later he rose to become a commander in the revolt against France. As Toussaint L'Ouverture's principal lieutenant, he led many successful engagements, such as the Battle of Crête-à-Pierrot. After the betrayal and capture of Toussaint Louverture in 1802, Dessalines became the leader of the revolution. He defeated French troops sent by Napoleon at the Battle of Vertières in 1803. Declaring Haiti an independent nation in 1804, Dessalines was chosen by a council of generals (blacks and mulattos) to assume the office of Governor-General. In September 1804, he proclaimed himself Emperor and ruled in that capacity until being assassinated in 1806.

All Saints' Day (in the Catholic Church officially the Solemnity of All Saints and also called All Hallows or Hallowmas), often shortened to All Saints, is a solemnity celebrated on 1 November in Western Christianity, and on the first Sunday after Pentecost in Eastern Christianity, in honour of all the saints, known and unknown. In terms of Western Christian theology, the day commemorates all those who have attained the beatific vision in Heaven. In the Roman Catholic Church, the next day, All Souls' Day, specifically commemorates the departed faithful who have not yet been purified and reached heaven. It is a national holiday in many historically Catholic countries.

Christmas or Christmas Day is an annual Christian holiday commemorating the birth of Jesus Christ. It is celebrated on December 25, but this date is not known to be Jesus' actual birthday, and may have initially been chosen to correspond with either the day exactly nine months after some early Christians believed Jesus had been conceived, a historical Roman festival, or the date of the northern hemisphere's winter solstice. Christmas is central to the Christmas and holiday season, and in Christianity marks the beginning of the larger season of Christmastide, which lasts twelve days