In 1911, a fire broke out at the Triangle Shirtwaist Factory in Manhattan.

Within minutes, the situation became catastrophic. Locked doors and inadequate safety measures trapped workers inside, leading to one of the deadliest industrial disasters in New York history.

In the aftermath, public outrage led to sweeping changes in workplace safety laws. Fire codes, building regulations, and labor protections were strengthened, not just in New York, but across the country.

The tragedy became a turning point, shaping how buildings are designed and how workers are protected to this day.