Freebase was a large collaborative
knowledge base consisting of
data composed mainly by its
community members. It was an
online collection of structured data harvested from many sources, including individual, user-submitted
wiki contributions. Freebase aimed to create a global resource that allowed people (and machines) to access common information more effectively. It was developed by the American software company
Metaweb and ran publicly since March 2007. Metaweb was acquired by
Google in a private sale announced 16 July 2010. Google's
Knowledge Graph was powered in part by Freebase.