On April 5, 1911, 400,000 New Yorkers gathered to pay tribute to the victims of the Triangle Shirtwaist Factory fire: the deadliest workplace accident in the city's history. | American Experience | PBS

A dropped match on the floor of the Triangle Shirtwaist Factory sparked a fire that killed over a hundred innocent people trapped inside. It was the deadliest workplace accident in New York City's history, and the American factory industry would never be the same. TRIANGLE FIRE airs Tuesday, Jan. 30 at 9/8c, only on PBS. | American Experience | PBS