Jesus chose to be born on the shortest day of the year for symbolic reasons, according to an early Christmas sermon by Augustine: "Hence it is that He was born on the day which is the shortest in our earthly reckoning and from which subsequent days begin to increase in length.
He, therefore, who bent low and lifted us up chose the shortest day, yet the one whence light begins to increase." Linking Jesus to the Sun was supported by various Biblical passages.
However, some Eastern Christian Churches celebrate Christmas on December 25 of the older Julian calendar, which currently corresponds to January 7 in the Gregorian calendar, the day after the Western Christian Church celebrates the Epiphany.
The first recorded Christmas celebration was in Rome in 336.