| Year | Description | Category |
|---|---|---|
| 2015 | Chess grandmaster from Croatia, Krunoslav Hulak died. | Death day |
| 2011 | American chemist Herbert A. Hauptman died. | Death day |
| 1987 | Chess grandmaster from Cuba, Camilo Ernesto Gomez Garrido was born. | Birthday |
| 1986 | American biochemist Edward Adelbert Doisy died. | Death day |
| 1976 | Chess grandmaster from United States, Gabriel Schwartzman was born. | Birthday |
| 1957 | Indian entrepreneur Sunil Bharti Mittal was born. | Birthday |
| 1954 | Taiwanese film director Ang Lee was born. | Birthday |
| 1944 | British physicist Charles Glover Barkla died. | Death day |
| 1940 | Brazilian footballer Pelé was born. | Birthday |
| 1935 | Golfer from Puerto Rico, Chi-Chi Rodríguez was born. | Birthday |
| 1921 | Scottish inventor John Boyd Dunlop died. | Death day |
| 1908 | Soviet physicist Ilya Frank was born. | Birthday |
| 1905 | Swiss-American physicist Felix Bloch was born. | Birthday |
| 1905 | Supercentenarian from Italy, Diega Cammalleri was born. She died at the age of 113 years, 235 days. | Birthday |
| 1885 | Polish chemist Jan Czochralski was born. | Birthday |
| 1869 | British politician Edward Smith-Stanley died. | Death day |
| 1849 | Japanese politician Saionji Kinmochi was born. | Birthday |
| 1844 | French inventor and physicist Edouard Branly was born. | Birthday |
| 1797 | Dutch politician Jan Jacob Rochussen was born. | Birthday |
| 1762 | American inventor Samuel Morey was born. | Birthday |
| 1760 | Japanese surgeon Hanaoka Seishu was born. | Birthday |
2018-10-23