The tipping position for Twitter's acceptance was the 2007 South by Southwest Interactive (SXSWi) conference. It had 400,000 tweets posted for each quarter in 2007. This grew to 100 million tweets posted per quarter in 2008. In February 2010, Twitter consumers were being sending fifty million tweets per working day. Work on the project began on March 21, 2006, when Dorsey released the very first Twitter message at 12:50 p.m.