| Category | Sub-Categories | Boards |
| Australia | 0 | 1 |
| Sweden | 0 | 1 |
| United States | 0 | 2 |
| Board | Threads | Messages | Last Post |
| 1830 Medical Schools | 29 | 318 | 9 Oct 2013 |
| 1918 Influenza Epidemic | 0 | 0 | 7 Apr 2014 |
| Born with a birth mark | 54 | 253 | 2 Dec 2014 |
| Cholera deaths Ohio USA 1845-1850 | 0 | 0 | 4 Feb 2013 |
| Hereditary Diseases | 227 | 746 | 27 Jun 2015 |
| Tuberculosis Quarantine Stations in San Francisco 1940 | 0 | 0 | 28 Oct 2014 |