SmartAnswer

Smart answer:

After reading 1875 websites, we found 4 different results for "When did the Second World War begin"

1939

The Second World War began on September 1, 1939, with the invasion of Germany over Poland.

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on September 1, 1939 – Germany’s invasion of Poland

Most historians agree that the Second World War began on September 1, 1939 – Germany’s invasion of Poland.

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+20
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+21

Confidence Score

on September 1, 1939,

The Second World War began on September 1, 1939, with the invasion of Germany over Poland.

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+107
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+108

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on September 3, 1939

Just before the Second World War began on September 3, 1939, Jews were already suffering extermination at the hands of Nazi Germany.

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+19
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+20

Confidence Score