The world population on Earth passed 3 billion.
It was only 33 years before this that the population reached 2 billion.
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Over 400 people died in the Great Hinckley Fire, a forest fire in Hinckley, Minnesota.
Jews in Germany over six years old were forced to wear the yellow star of David.
Germany invaded Poland in the free city of Danzig, which started World War II.
Louis XV succeeded his great-grandfather and became King of France at the young age of five.
Google adopted a new logo design.