有人知道国庆节的由来或习俗吗？有英文的简短介绍吗？有的话请帮帮我！

圣诞歌曲

　　O Christmas Tree
　　O Christmas tree, O Christmas tree
　　How are thy leaves so verdant?
　　Not only in the summertime
　　But ev'n in winter is thy prime
　　O Christmas tree, O Christmas tree
　　How are thy leaves so verdant?
　　O Christmas tree, O Christmas tree
　　Much pleasure doth thou bring me!
　　For every year the Christmas tree
　　Brings to us all both joy and glee
　　O Christmas tree, O Christmas tree
　　Much pleasure doth thou bring me!
　　O Christmas tree, O Christmas tree
　　Thy candles shine out brightly!
　　Each bough doth hold its tinny light
　　That makes each toy to sparkle bright
　　O Christmas tree, O Christmas tree
　　thy candles shine out brightly!

　　The 12 Days of Christmas

　　On the first day of Christmas
　　My true love sent to me
　　A partridge in a pear tree
　　On the second day of Christmas
　　My true love sent to me
　　Two