On the eighth floor of a women’s garment factory steps from Washington Square Park, a fire broke out in a wood bin filled with fabric scraps. It was about 4 pm on a Saturday, and the workday should have been ending.

Instead, the blaze grew, reaching the ninth and tenth floors of the factory. When workers tried to escape, they encountered locked doors. One fire escape collapsed to the ground under the weight of desperate employees.
Many of those trapped in the upper floors jumped to the sidewalk in front of horrified onlookers, others burned in the flames because firefighters’ ladders were too short to reach the windows. A total of 146 workers were killed in the fire of March 25, 1911—mostly young female immigrants.
As tragic as the Triangle Shirtwaist Factory fire was, the terrible toll had a profound effect in New York City—leading to stricter workplace safety laws and harsher legislation protecting workers. These new mandates had strong support from an outraged public, whose horror was reflected in piercing illustrations that appeared in newspapers for weeks.
This one above is by John Sloan, published in The Call. The illustrator of the second image is unknown, but that sure looks like the Asch Building, where the Triangle fire occurred.