They are one of the most popular candies in the world; Hershey's kisses were the fifth most popular candy in 1989. More than 80 million Hershey Kisses are produced every day. Hershey's kisses were wrapped by hand from 1907 to 1921. In 1921, automated wrapping began. The machine that did this could also put a little slip of paper inside the Kiss, which is still there today. They have become so popular that a postage stamp has recently been issued honoring the Hershey's Kiss. These candies are loved by many today.