圣诞节的神奇历史，你了解吗TheAmazingHistoryofChristmas(2)

没有哪个节日的传统比圣诞节的更丰富多样了。
So let"s look into its history and see if we can uncover some of that richness and tradition.
所以，让我们回顾圣诞节的历史，看看能否发现这些传统的细节。
And if you don"t celebrate Christmas— well, at least you"ll have a better appreciation of why so many people do.
如果你不庆祝圣诞节，至少能更好地了解为什么这么多人喜欢（这个节日）。
Here"s what everybody knows: Christmas is when Christians celebrate the birthday of Jesus Christ.
这是众所周知的：圣诞节即基督徒庆祝耶稣基督生日的日子。
That in itself is a very big deal.
这本身就是一件大事。
Christianity, in all its many iterations, remains the most popular religion in the world.
经过多次演变，基督教仍然是世界上教徒最众的宗教。
Two billion people follow it.
20亿人都在庆祝这个节日。
Aside from its obvious religious significance, the first Christmas stands as the great divide for the recording of human history.
除了没有明显的宗教意义，第一个圣诞节是记录人类历史的分水岭。
Until recently, history was divided between BC (Before Christ) and AD (Anno Domini, which is Latin for "Year of Our Lord").
直到后来，历史被划分为公元前(基督诞生前)和公元(Anno Domini，拉丁语的意思是"我们主的年代")。