Lincoln faced an unprecedented crisis that remains unique in American history. Were the choices he made vindicated by history?

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The original United States Constitution was a compromise between slaveholders and non-slaveholders. It made key compromises to protect a union between the Northern and Southern states and protected the slave trade in U.S. law.

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Coming soon on the Unknown History podcast: the story of Abraham Lincoln's work reshaping the United States Constitution.

After 323 days of the Berlin Blockade, a weather system nearly brought the city to its knees. However, the strength of the Germans, tenacity of the Americans (and a little bit of luck), resulted in victory.

The Berlin Airlift of 1948 saved the city from starvation...but just barely. Unknown History delves into the astonishing ingenuity of American military alongside the hard work of German citizens that kept the city from collapse.

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The Berlin Airlift saved the city from starvation during the Russian blockade of 1948. But supplying over two million people for over a year via airplane was a Herculean feat that almost didn't happen. Unknown History delves deeper into the American solution.

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When the Soviets cut off all supply routes to western Berlin in 1948, they didn't anticipate the ingenuity and tactical planning skills of Army Brigadier General Frank Howley. Could the Berlin Airlift really keep the entire city alive during the siege?

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The Soviets' siege of Berlin did not begin with a bang, but rather a series of smaller infractions, starting with stopping trains to check passengers' papers to cutting off routes for trucks that delivered milk. Giles Milton dives into another moment of Unknown History.

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Western allies in post-war Berlin had never encountered the likes of General Alexander Kotikov, a staunch communist with a velvet touch.

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Winston Churchill's seminal 1946 speech in Westminster College gave not only a name to growing Soviet influence in Central and Eastern Europe, it also foresaw the future of the Iron Curtain.

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