5th » Operation Nimrod: The British Special Air Service storms the Iranian embassy in London after a six-day siege.
8th » The World Health Organization confirms the eradication of smallpox.
9th » In Florida, Liberian freighter 'MV Summit Venture' collides with the Sunshine Skyway Bridge over Tampa Bay, making a 1,400-ft. section of the southbound span collapse. Thirty-five people in six cars and a Greyhound bus fall 150 ft. into the water an
9th » In Norco, California, five masked gunmen hold up a Security Pacific bank, leading to Norco shootout named a violent shoot-out and one of the largest pursuits in History of California known as California history. Two of the gunmen and one police officer ar
13th » An Fujita Scale named F3 tornado Kalamazoo Tornado of 1980 known as hits Kalamazoo County, Michigan. President Jimmy Carter declares it a federal disaster area.
17th » On the eve of presidential elections, Maoism or Maoist guerrilla warfare called guerrilla group Shining Path attacks a polling location in the town of Chuschi, Ayacucho, starting the Internal conflict in Peru.
18th » 1980 eruption of Mount St. Helens: Mount St. Helens erupts in Washington (state) known as Washington, United States, killing 57 people and causing $3 billion in damage.
18th » Gwangju Massacre: students in Gwangju, South Korea begin demonstrations calling for democratic reforms.
20th » In a 1980 Quebec referendum named referendum in Quebec, the population rejects by a 60% vote the proposal from its government to move towards independence from Canada.
22nd » Namco releases the highly influential arcade game 'Pac-Man'.
27th » The Gwangju Massacre: Airborne and army troops of South Korea retake the city of Gwangju from civil militias, killing at least 207 and possibly many more.