The official secret police force of Nazi Germany, the Gestapo, was established.
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Rapper Ice Cube married Kimberly Woodruff.
The Handmaid's Tale debuted on Hulu.
The Chernobyl power plant in Ukraine exploded, killing 31 people and spreading contamination across Western Europe.
The Treaty of London was signed by Italy, Britain, France, and Russia.
Astronomer Nicolaus Copernicus made his first observation of Saturn.
