The abbreviation Xmas isn't irreligious. The letter X is a Greek abbreviation for Christ.
More Christmas Facts
The world's tallest Xmas tree at 221ft high was erected in a Washington shopping mall in 1950.
Many theologians estimate that Jesus wasn't born on December 25 but sometime in September between 6BC and 30AD.
In 1999, residents of the state of Maine in America built the world's biggest ever snowman. He stood at 113ft tall.