The weekend, the minimum wage, Social Security. We treat these as permanent, but their foundational architecture was largely designed by one woman operating in the fiercely male-dominated politics of the 1930s. Born into a conservative New England family, Frances Perkins studied chemistry and physics, developing an analytical mind that would later reengineer the relationship between American citizens and their government.

This deep dive maps her evolution from settlement house worker to the first female cabinet member in U.S. history, tracing how the Triangle Shirtwaist fire she personally witnessed transformed a social worker into a relentless legislative tactician.

• The 1911 factory fire that killed 146 workers behind locked doors and became the crucible of her career
• Directing a young FDR to filibuster while she hunted  ...