The custom of using a Christmas tree for Christmas comes from Germany, what's the reason?

It is said that the Christmas tree first appeared in ancient Rome in mid-December on the Feast of the Gods of Agriculture. Subsequently, the Germans took December 24 as Adam and Eve's holiday, in the home to put a symbol of the Garden of Eden "paradise tree", hanging on the representative of the Holy Cake small Kopecks, but also lighted candles. In the 16th century, Martin Luther, the Reformer, designed a Christmas tree with candles in order to have a starry Christmas night. However, the West about the origin of the Christmas tree is popular in another way of saying: there is a good farmer, on Christmas Day, warmly entertained a wandering child, parting, the child folded a branch inserted into the ground, the branch immediately grew into a large tree, the child pointed to the tree to the farmer, said, every year after today, the tree will be full of gifts to repay you for your hospitality. So, today people see the Christmas tree is always full of small gifts.