00:00 On March 25, 1911, a fire in a garment factory in Manhattan killed 146 people, most of which could have been prevented, and had lasting repercussions.

01:52 The Triangle Shirtwaist Factory was a popular sweatshop in Manhattan, employing mostly young immigrant women who worked long hours for low pay and were subject to poor working conditions.

03:13 The Triangle Shirtwaist Factory fire broke out in the northeast corner of the factory on the 8th floor, potentially caused by a cigarette from a cutter, and the workers were unable to escape due to locked doors.

04:35 The lack of fire safety measures, including extinguishers, sprinklers, and functional fire escapes, resulted in a fast-spreading fire that trapped and killed many workers in the Triangle Shirtwaist Factory.

05:50 The Triangle Shirtwaist Factory fire resulted in 146 deaths, led to a funeral procession with 350,000 participants, increased the membership of the International Ladies' Garment Workers Union, and prompted the creation of the Factory Investigating Commission to suggest new laws.

07:07 The Triangle Shirtwaist Factory fire led to widespread reforms, including legislation for a 54-hour workweek, improved facilities, fire regulations, and stricter enforcement of fire codes, as well as the founding of the American Society of Safety Professionals; however, the owners of the factory were acquitted of manslaughter charges and only fined $75 per person who died in the fire.

08:27 The Triangle Shirtwaist Factory fire led to lasting memorials, including a fundraising drive for a memorial and a plaque on the building where the fire occurred, and also resulted in significant changes in fire safety and labor standards.