This item represents a collection of 13,480,000 tweet IDs that mentioned 'ferguson' from 2014-08-10 to 2014-08-27 and 15,080,078 tweet IDs that mention "ferguson" between 2014-11-11 and 2014-12-08. The first set includes tweets for the two week period after the shooting of Michael Brown, and the second range includes tweets around the grand jury's decision not to indict police office Darren Wilson which was announced on 2014-11-24. The first set of tweets were collected by Ed Summers at the University of Maryland and the second was a collaboration between Molly Loyd, Gregory Coleman, Kimberly Lamke, Benjamin Sugar and Ed Summers.