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Creators
- United Nations 15
- Anonymous 14
- Alexander Teixeira de Mattos 12
- Carl Schurz 12
- Thornton W. Burgess 9
- Alfred Edmund Brehm 7
- E. Raymond Hall 7
- Arabella B. Buckley 6
- Ernest Thompson Seton 6
- Francis Adams 6
- Fritz Kriete 6
- Leo Tolstoy 6
- Various 6
- Civil Aeronautics Board 5
- Clara Dillingham Pierson 5
- Emily Wilmer Cave Wright 5
- Hippocrates 5
- Jean-Henri Fabre 5
- Theodore Roosevelt 5
- Andrew Jackson 4
- Aristotle 4
- Bradford Torrey 4
- Charles Darwin 4
- Charles G. D. Sir Roberts 4
- Dallas Lore Sharp 4