On this day — July 17
Curated American history anniversaries for July 17, each linked to a full SeeStew article with named sources. Empty calendar stubs are not published.
Hyatt Regency walkway collapse (1981)
The Hyatt Regency Walkway Collapse: A Design Change That Killed 114
Two skywalks fell into a hotel lobby during a tea dance — and the investigation traced the disaster to a fatal structural redesign.
Port Chicago explosion (1944)
Port Chicago: The Explosion That Launched the Civil Rights Movement in the Military
In 1944, a massive ammunition explosion killed 320 sailors — two-thirds of them Black. When survivors refused to return to the same deadly conditions, 50 were court-martialed for mutiny.