On this day: August 11
Reports of Trumpet-Like Sounds Heard from Sky on August 11, 2012
On August 11, 2012, multiple people in different locations reported hearing sustained trumpet-like or horn sounds seeming to originate from the sky; explanations ranged from aircraft and construction to natural acoustic phenomena, though no single cause was confirmed.
Game Called When Locust Swarm Invades Ballpark, August 11, 1934
On August 11, 1934, a professional baseball game was halted and ultimately called off after a sudden invasion of locusts (grasshoppers) swarmed the field, disrupting play and forcing players and umpires to seek cover.
Violent Inmate Uprising Erupts at Alcatraz, August 11, 1937
On August 11, 1937, inmates at Alcatraz Federal Penitentiary staged a violent uprising that left several wounded and prompted a forceful response from prison authorities; accounts vary on motives and exact sequence of events.