It’s Snoopy’s Birthday! Born in 1950, Snoopy made his first appearance in the Peanuts comic strip written by Charles Schulz. Snoopy is best known for palling around with his yellow bird-friend, Woodstock, taking long naps on top of his dog house and escaping into imaginative adventures as The Flying Ace or Joe Cool. We wish America’s favorite beagle a very happy birthday!