The Deadly 1919 Boston Molasses Flood episode artwork

EPISODE · Sep 15, 2026 · 43 MIN

The Deadly 1919 Boston Molasses Flood

from Unlocking the Unknown · host Atlas Gray

On 15 January 1919, the Great Boston Molasses Flood occurred when a massive industrial tank burst in the city's densely populated North End. These sources document the catastrophe, which released a 15-to-40-foot wave of sticky liquid that travelled at 35 miles per hour, killing 21 people and causing extensive destruction to buildings and infrastructure. Historical records and newspaper accounts detail the structural defects of the container and the unseasonably warm weather that contributed to the disaster. Modern scientific research explores the fluid dynamics and viscosity of the spill, while legal historians examine the landmark lawsuit that followed. This litigation highlighted critical issues regarding big business accountability, immigration, and the subsequent implementation of stricter industrial safety standards. Beyond the technical data, the documents preserve the personal histories of the victims, many of whom were working-class laborers and immigrants.

Episode metadata supplied by the publisher feed · Published Sep 15, 2026

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The Deadly 1919 Boston Molasses Flood

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