| Date | Event |
|---|---|
| May 02 1980 | System Of Government Referendum Held In Nepal |
| May 05 1980 | British Special Air Service Ends Six-day Siege |
| May 08 1980 | WHO Confirms Smallpox Eradicated |
| May 09 1980 | Liberian Freighter Causes Partial Bridge Collapse |
| May 09 1980 | 3 Die In California Bank Robbery |
| May 13 1980 | An F3 Tornado Lands In Michigan |
| May 17 1980 | General Chun Seizes Control Of Government |
| May 17 1980 | Shining Path Starts Peru Conflict With Attacks |
| May 18 1980 | 1980 Eruption Of St.Helens Killed 57 People And Caused $3 Billion |
| May 18 1980 | South Korean Students Demonstrate For Democratic Reforms |
| May 20 1980 | Quebec Independence Referendum Rejected |
| May 22 1980 | Namco Releases Pac-Man |
| May 27 1980 | Gwangju Reclaimed By Civil Militias In South Korea |