Henry the Lion founded the city of Munich on the banks of the river Isar.
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Napoleon formed the Ligurian Republic.
Police checks on drunk drivers was declared constitutional by the US Supreme Court.
Auschwitz concentration camp started operation after 728 Polish prisoners became the first to arrive.
The Second Continental Congress met to create the US flag with stars and stripes.
President Richard Nixon implemented a 60-day price freeze across the US.
