A Christmas tree is a decorated tree, usually an evergreen conifer such as spruce, pine or fir, traditionally associated with the celebration of Christmas. The tree was traditionally decorated with edibles such as apples, nuts or dates. In the 18th century, it began to be illuminated by candles, which with electrification could also be replaced by Christmas lights. Today, there are a wide variety of traditional ornaments, such as garland, tinsel, and candy canes. An angel or star may be placed at the top of the tree to represent the host of angels or the Star of Bethlehem from the Nativity.