The library was originally based on the
Prototype JavaScript Framework. OpenLayers was created by
MetaCarta after the
O'Reilly Where 2.0 conference of June 29–30, 2005, and released as open source software before the Where 2.0 conference of June 13–14, 2006, by MetaCarta Labs. Two other open-source mapping tools released by MetaCarta are
FeatureServer and
TileCache. Since November 2007, OpenLayers has been an
Open Source Geospatial Foundation project. == Notes ==