| 2023-11-03 | Philosopher Friedrich |
| 2023-03-05 | Marx's co-author for "The Communist Manifesto" |
| 2022-01-17 | Marx's collaborator on "The Communist Manifesto" |
| 2021-08-29 | "Socialism: Utopian and Scientific" writer, 1880 |
| 2021-02-06 | Author of 1884's "The Origin of the Family, Private Property and the State" |
| 2020-01-25 | Author of "The Condition of the Working Class in England," 1845 |
| 2019-07-08 | Marx's collaborator on "The Communist Manifesto" |
| 2017-09-28 | Marx collaborator |
| 2014-07-03 | Co-author of "The Communist Manifesto" |
| 2011-12-29 | Communist Friedrich |
| 2007-12-02 | Marx's collaborator on "The Communist Manifesto" |
| 2006-12-14 | Marx collaborator |
| 2003-10-14 | Marx collaborator |
| 2002-01-04 | Manifesto writer of 1848 |
| 2001-09-29 | "Anti-Dühring" author |
| 2001-04-25 | "Communist Manifesto" co-author |
| 1996-06-02 | Marx collaborator |
| 1994-05-14 | "Communist Manifesto" coauthor |