how did rudolph the red-nosed reindeer originated

The legend of Rudolph the Red-nosed Reindeer can be traced back to 1939, when Robert L. May wrote a poem titled "Rudolph the Red-Nosed Reindeer" for a department store. The poem was so popular that May's publisher convinced him to turn it into a book, which became an instant classic. In the story, Rudolph is a young reindeer with a glowing red nose who is ostracized by the other reindeer for being different. But when a terrible storm threatens Christmas, Rudolph's unique gift saves the day. The story of Rudolph has since been