What is Freebase?
Freebase is an open database of the world’s information. “Open” means it’s built by the community, for the community — anyone can contribute information, create collections of information to share with others, build applications that use our API. It also means that the database is freely, openly licensed. Freebase already contains millions of facts in dozens of categories spanning people, locations, books, movies, music, companies, science, sports, and more, and is growing daily, thanks to the efforts of a passionate, global user community. Freebase is unique among online databases because a single Freebase topic can encompass many different kinds of information. In other databases there would have to be a separate topic for each category, or a completely separate database. For example, Arnold Schwarzenegger would appear in a movie database as an actor, a political database as a governor, and a bodybuilder database as a Mr. Universe.