when was christmas first celebrated

Christmas is an annual festival and holiday that celebrates the birth of Jesus Christ. The exact date of the first Christmas is unknown, but it is believed to have been celebrated in the early fourth century AD. The holiday has since evolved into a worldwide celebration of joy, generosity, and peace, and is now celebrated by people of all faiths and backgrounds. Christmas traditions vary from country to country, but common elements include exchanging gifts, sharing meals, decorating trees, and attending church services.