Before "Cinderella" became a Disney hit, the story existed as a folktale. The most direct source is Charles Perrault's French "Cendrillon" from 1697, but the basic story of a downtrodden girl who wins the love of a prince through magic or resourcefulness occurs in many cultures.
Unlike other variants, Perrault's contains the fairy godmother, pumpkin coach and midnight spell limit familiar from the Disney version. Perrault's slipper was fur, or "ver" in French, which was mistranslated in English as glass, which is "verre" in French. The Brothers Grimm collected a version of Cinderella, which they published in 1812. This story, while having the same name, has less resemblance to the Disney story, particularly in the violent ends for the sisters.
The 1950 Disney movie gives story credit to Charles Perrault. Bill Peet, credited in the movie as William Peed, receives the main screenplay credit. As a writer for Disney animation, Peet also worked on classics such as "Fantasia," "Sleeping Beauty" and "101 Dalmatians," among many other Disney movies and television shows.