On this day in history - May 22

What Happened On This Day – May 22

• 2012 The world's tallest tower is opened to the public

  At 643 meters (2080 feet), the Tokyo Skytree in Japan's capital city is also the second tallest structure in the world after Burj Khalifa in Dubai. Its prime purpose is relaying TV and radio signals.

• 2010 The worst air crash involving a Boeing 737 kills 158

  Air India Express Flight 812 overshot the runway on landing at Mangalore International Airport. It fell over a cliff and burst into flames. The 737 is the world's most widely flown aircraft.

• 1980 The arcade game Pac-Man is released

  The game featuring a dot-munching round yellow figure moving through a maze has become one of the best-known video games in history. It was produced by Namco.

• 1960 The most violent earthquake in recorded history hits Chile

  The Great Chilean Earthquake rated 9.5 on the moment magnitude scale. According to estimates, between 2230 and 6000 people were killed.

• 1906 The Wright brothers' flying machine is patented

  The American aviation pioneers are credited with having performed “the first sustained and controlled heavier-than-air powered flight.” (Fédération Aéronautique Internationale)