May 31 in American History

May 31, 1889 — the Johnstown Flood

A poorly maintained dam upstream of Johnstown, Pennsylvania, failed after heavy rains, sending a wall of water through the city and killing over 2,200 people in minutes. The disaster — traced to the negligence of a wealthy private club that owned the dam — spurred a landmark shift toward holding people legally accountable for such catastrophes.

Common Questions About May 31

What happened on May 31 in American history?

In 1889: the Johnstown Flood. A poorly maintained dam upstream of Johnstown, Pennsylvania, failed after heavy rains, sending a wall of water through the city and killing over 2,200 people in minutes.

Why is May 31 significant?

A poorly maintained dam upstream of Johnstown, Pennsylvania, failed after heavy rains, sending a wall of water through the city and killing over 2,200 people in minutes. The disaster — traced to the negligence of a wealthy private club that owned the dam — spurred a landmark shift toward holding people legally accountable for such catastrophes.

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