March 28 in American History

March 28, 1979 — the Three Mile Island accident

A partial meltdown at the Three Mile Island nuclear plant in Pennsylvania became the most serious accident in U.S. commercial nuclear history. No one died, and radiation release was limited, but public fear reshaped the nation's energy path — new reactor construction largely stopped for a generation. A crisis that changed a whole industry.

Common Questions

What happened on March 28 in American history?

In 1979: the Three Mile Island accident. A partial meltdown at the Three Mile Island nuclear plant in Pennsylvania became the most serious accident in U.S.

Why is March 28 significant?

A partial meltdown at the Three Mile Island nuclear plant in Pennsylvania became the most serious accident in U.S. commercial nuclear history. No one died, and radiation release was limited, but public fear reshaped the nation's energy path — new reactor construction largely stopped for a generation. A crisis that changed a whole industry.

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