What is special about December 7th in history?

  On December 7, 1990, the 14th annual meeting of the World Heritage Committee was held. At this meeting, Huangshan Mountain in China was listed as a world cultural and natural heritage. Have you ever been to Huangshan Mountain?

  On December 7, 1941, the Japanese navy and air force attacked Pearl Harbor.

  December 7 is there every year. Which year of today has a special meaning to you?

What unforgettable thing happened?

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