What is special about December 8th in history?

  On December 8, 1488, Yang Shen, the son of the famous official Yang Tinghe, was born. Later, he wrote the famous "Rolling Yangtze River East Passing Water".

  On December 8, 1980, John Lennon, the soul of the Beatles, was shot to death. Have you heard his song?

  December 8th is there every year, which year today has a special meaning to you?

What unforgettable thing happened?