Christmas (Christian)
Christmas or Christmas Day is an annual holiday that celebrates the birth of Jesus. It is traditionally observed on December 25. Eastern Orthodox Churches celebrate it on January 7, which corresponds to December 25 of the Julian calendar.
These dates are merely traditional; the precise chronology of Jesus' birth and death is still debated. Christmas has many aspects, both religious and secular, including the exchange of gifts, Santa Claus, decoration and display of the Christmas tree, and religious ceremonies.
The popularity of Christmas can be traced in part to its status as a winter festival. Many cultures have historically celebrated their most important holiday in winter because there is less agricultural work to do at this time. Examples of winter festivals that have influenced Christmas include the pre-Christian festivals of Yule and Saturnalia. Many of the traditions associated with the holiday have origins in these pagan winter celebrations.
Around 220 AD, the theologian Tertullian declared that Jesus died on March 25, 29, but was resurrected three days later. Although this is not a plausible date for the crucifixion, it does suggest that March 25, nine months before December 25th, had significance for the church even before it was used as a basis to calculate Christmas. Modern scholars favor a crucifixion date of April 3, 33, which was also the date of a partial lunar eclipse (These are Julian calendar dates. Subtract two days for a Gregorian date.).
By 240 AD, a list of significant events was being assigned to March 25, partly because it was believed to be the date of the vernal equinox. These events include creation, The Fall of Adam and Eve, and, most relevantly, the Incarnation. The view that the Incarnation occurred on the same date as crucifixion is consistent with a Jewish belief that prophets died at an "integral age," either an anniversary of their birth or of their conception.
The idea that December 25 is Jesus' birthday was popularized by Sextus Julius Africanus in Chronographiai (221 AD), an early reference book for Christians. This identification did not at first inspire feasting or celebration. In 245 AD, the theologian Origen denounced the idea of celebrating the birthday of Jesus "as if he were a king pharaoh." Only sinners, not saints, celebrate their birthdays, Origen contended.
As Constantine ended the Christian persecution and began the persecution of non-Christians, Christians began to debate the nature of Christ. The Alexandrian school argued that he was the divine word made flesh (see John 1:14), while the Antioch school held that he was born human and infused with the Holy Spirit at the time of his baptism (see Mark 1:9-11). A feast celebrating Christ's birth gave the church an opportunity to promote the intermediate view that Christ was divine from the time of his incarnation. Mary, a minor figure for early Christians, gained prominence as the theotokos, or god-bearer. There were Christmas celebrations in Rome as early as 336 AD. December 25 was added to the calendar as a feast day in 350 AD.
Christmas soon outgrew the Christological controversy that created it and came to dominate the medieval calendar.