Rudolph is actually one of the youngest reindeer in Santa's team. He was born on Christmas Eve in the year 1939 and became part of the team at the age of 5, the youngest ever to join. Rudolph quickly gained the nickname "Red-Nosed Reindeer" due to his bright red nose that was a source of embarrassment for him at first, but now it's what makes him unique and beloved by children all over the world.