Documented first external metal fire-escape system.
Also on August 2, 1887, Anna Connelly's patent introduced the first documented external metal fire-escape system. Her design used steel platforms with protective railings, enabling safer building evacuations. This system became widely recognized as a direct predecessor of modern exterior fire escapes.
Connelly's design addressed critical safety issues in urban environments where fire hazards were significant. The integration of her design into building safety standards demonstrated her crucial role in advancing architectural safety, showcasing her enduring impact on urban planning.