Quora[5] (/ˈkwɔːrə/) is a social question-and-answer website and online knowledge market headquartered in Mountain View, California. It was founded on June 25, 2009,[6] and made available to the public on June 21, 2010.[7] Users can collaborate by editing questions and commenting on answers that have been submitted by other users.[8] As of 2020, the website was visited by 300 million users a month.[9]