The first pinewood derby was held in 1953, becoming an official part of the program in 1955. In 1954, the Webelos den program was started for 10-½ year olds and a Webelos den emblem was introduced, used on the Webelos den flag and replacing the den number on the uniform. In 1954, the National Council moved its offices from New York City to the southwest corner of U.S. Route 1 and U.S. Route 130 in North Brunswick, New Jersey. The Bobcat pin was approved for uniform wear in 1959. In 1956, Scouts and Scouters who participated in an approved international activity or event were allowed to wear the World Crest as a permanent award. Local councils were allowed to present the crest in 1957.