Columbia University students barricade the dean’s office in 1968
Officials at Columbia virtually sealed off the troubled campus last night, canceling evening classes and closing all entrances 
except for two on 116th St.
The action came amid reports that Harlem [African-Americans] planned to join student sit-ins that were continuing in two campus buildings.
The tension continued despite the release of Henry Coleman, acting dean of Columbia College, and two associates. They had been held in Coleman’s office in Hamilton Hall since Tuesday afternoon. Students revealed them at 3:30 p.m. yesterday.
Last night about 150 faculty and administration members voted to ask that all work be stopped on a gymnasium in Morningside Park pending further discussions with community leaders on the controversial gym.
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By New York Daily News | April 22, 2015
(Originally published by the Daily News on April 25, 1968. This story was written by Edward Benes and Arthur Mulligan.)