My Little Pony is an entertainment franchise developed by Hasbro, originally as a toy line for girls. The first toys were developed by Bonnie Zacherle, Charles Muenchinger, and Steve D'Aguanno, and were produced in 1981. The ponies feature colorful bodies, manes and a unique symbol on one or both sides of their flanks. Such symbols are referred to in the two most recent incarnations as "cutie marks." My Little Pony has been revamped several times with new and more modern looks to appeal to a new market. Following the original My Pretty Pony toy that was introduced in 1981, My Little Pony was launched in 1982 and the line became popular during the 1980s. The original toy line ran from 1982 to 1992 in the United States and to 1995 globally, and inspired animated specials, an animated feature-length film, and two animated television series. The first incarnation's popularity peaked in 1990, but the following year Hasbro decided to discontinue the toy line due to increased competition. 150 million ponies were sold in the 1980s.