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May 10
ON THIS DAY

May 10

5 moments across history

1960

1960 – USS *Triton* completes first submerged circumnavigation of the globe

1960 – USS *Triton* completes first submerged circumnavigation of the globe

USS Triton’s underwater voyage proved the endurance of nuclear-powered submarines.

1960 – USS *Triton* completes first submerged circumnavigation of the globe — detail

The mission followed a Magellan-inspired route while remaining submerged for the full journey.

USS Triton completed the first submerged circumnavigation of the globe on May 10, 1960, after traveling more than 26,000 nautical miles without surfacing. The nuclear-powered submarine followed a route inspired by Magellan’s voyage while proving that atomic propulsion could sustain long, secret missions underwater. The journey was a Cold War demonstration of endurance, navigation, and the expanding reach of the U.S. Navy’s submarine fleet.

1941

1941 – Rudolf Hess flies to Scotland on a secret peace mission

1941 – Rudolf Hess flies to Scotland on a secret peace mission

Hess’s solo flight to Scotland shocked both Britain and Germany in 1941.

1941 – Rudolf Hess flies to Scotland on a secret peace mission — detail

The failed mission ended in arrest, denial from Hitler, and years of imprisonment.

Rudolf Hess flew alone to Scotland on May 10, 1941, claiming he wanted to negotiate peace between Nazi Germany and Britain. British authorities arrested him immediately, while Hitler disowned the mission and portrayed Hess as mentally unstable. The bizarre flight exposed fractures and delusions inside the Nazi leadership, but it did nothing to alter the course of the war.

1940

1940 – Winston Churchill becomes Prime Minister of the United Kingdom

1940 – Winston Churchill becomes Prime Minister of the United Kingdom

Churchill entered office as Germany opened its western offensive in May 1940.

1940 – Winston Churchill becomes Prime Minister of the United Kingdom — detail

His coalition government rallied Britain for the hardest months of the war.

Winston Churchill became Prime Minister of the United Kingdom on May 10, 1940, replacing Neville Chamberlain at the moment Germany invaded France and the Low Countries. He formed a coalition government and quickly framed the conflict as a national fight for survival. His leadership and wartime speeches helped sustain British morale through the Battle of Britain and the wider struggle against Nazi Germany.

1933

1933 – Nazi book burnings take place across Germany

1933 – Nazi book burnings take place across Germany

Nazi supporters staged public book burnings as a ritual of ideological control.

1933 – Nazi book burnings take place across Germany — detail

The targeted authors reflected the regime’s hostility to dissent, pluralism, and Jewish life.

On May 10, 1933, Nazi students and party supporters burned books across Germany in staged public ceremonies against works they labeled “un-German.” The targets included Jewish, Marxist, liberal, pacifist, and modernist writers whose ideas challenged Nazi ideology. The burnings became an early warning of the regime’s assault on free thought, cultural life, and human dignity.