This is an hour-by-hour account of what happened on that day, based almost entirely on photographs and video taken by Columbia Journalism School students.
Covering Columbia s Protests Gave Me Hope About Journalism time.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from time.com Daily Mail and Mail on Sunday newspapers.
More than 2,000 people have been arrested on college and university campuses since April 18, as a wave of pro-Palestinian protests ripples across the US. Follow for live updates. Follow for live updates.