Fact of the Day: America's worst harbor explosion

On April 16, 1947, America's worst harbor explosion occurred in Texas City, Texas, when the French ship Grandcamp, carrying ammonium nitrate fertilizer, caught fire and blew up, devastating the town. Another ship, the Highflyer, exploded the following day. The explosions and resulting fires killed more than 500 people and left 200 others missing.

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