Pro-Palestinian protests sprouted on campus April 17 when students pitched about 50 tents while demanding a cease-fire in Gaza and insisting the university divest from companies that they say could be profiting from the war.

While the apparent end of Columbia’s pro-Palestinian encampments was marred by a takeover of a building, a mass arrest, and a widespread condemnation of the heavy police presence, encampments came down voluntarily at Brown and other peer institutions like Northwestern University.

Hours after negotiations between administrators and student leaders failed, police arrested dozens of people and cleared out protest encampments that spawned similar demonstrations at colleges around the world.