| Date | Event |
|---|---|
| May 06 1966 | England: Hindley And Brady Sentenced To Life |
| May 08 1966 | PA Plane Crash Kills General And His Family |
| May 15 1966 | Nguyễn Cao Kỳ Strikes At Tôn Thất Đính |
| May 16 1966 | China's Communist Party Issues ""May 16 Notice" |
| May 21 1966 | Ulster Declares War On The IRA |
| May 25 1966 | Explorer 32 Launches |
| May 25 1966 | Peking University Post China's First Prominent Dàzìbào |
| May 26 1966 | Guyana Gains Independence |
| May 30 1966 | Congolese President Mobutu Orders Executions Of Political Adversaries |
| May 30 1966 | Surveyor-1 Land On Extraterrestrial Body |