Why do we use ornaments on Christmas trees? We put more than just ornaments on a Christmas tree, we put lights,a star, snowflake, and even an angel but obviously ornaments. A fun fact about ornaments is that Christmas ornaments were invented in A tiny German village. You might be wondering who invented ornaments. Well the person who invented ornaments is Hans Greiner. Ornaments are symbolized as home protection, good luck, and the unity of the family. Did u know that the oldest ornament is The glass Baubles. You might be wondering why ornaments are called "ornaments", They are called ornaments because an accessory, article, or detail used to beautify the appearance of something which it is added or of which it is part. Ornaments were first used for decorating evergreen trees.The most popular Christmas ornaments are ball or bulb ornaments.