The tipping point for Twitter's level of popularity was the 2007 South by Southwest Interactive (SXSWi) meeting. It had 400,000 tweets posted for each quarter in 2007. This grew to one hundred million tweets posted per quarter in 2008. In February 2010, Twitter people have been sending fifty million tweets for each day. Work on the job started off on March 21, 2006, when Dorsey printed the initially Twitter information at 12:50 p.m.