Santa Claus has been called by several different names throughout the years. Traditions and legends of Santa Claus for the evolution of the modern-day Santa may been based on the early Dutch legend of Sinter Klaas, originating in the 1600's.
Santa Claus really started to get famous when American author Washington Irving published stories about Santa Claus, referring to him as Saint Nicholas who arrived on Christmas Eve bringing presents for children.
Santa Claus changed and became more famous when writer Clement Clarke Moore wrote a poem in 1823 about a Christmas Eve visit from Saint Nicholas, better known as "The Night Before Christmas" (listed below). Millions of children now could have a consistent description of Santa Claus and his eight flying reindeer.
American magazines picked up on the popularity of Santa Claus, and many different versions of Santa Claus were published over the next 50 years. Santa Claus even began to appear in advertisements for popular products.
Interesting to note that Santa's "Now" famous Red Suit and black boots were added by Coke-a- Cola to advertise their product.
The most famous reindeer, red nosed Rudolph started to appear in the late 1930's.
Santa Claus, Rudolph, and the other reindeer would get periodic boosts in popularity when songs, stories, movies, or videos were released about them.