Saint Patrick's Day, or the Feast of Saint Patrick, is a cultural and religious celebration held on 17 March, the traditional death date of Saint Patrick, the foremost patron saint of Ireland.
Sewing Machine Day celebrates a very important invention - the sewing machine.
Snow comprises individual ice crystals that grow while suspended in the atmosphere-usually within clouds-and then fall, accumulating on the ground where they undergo further changes.
Skyscraper Day is a day to appreciate and admire the world's tallest skyscrapers.
