Famous Speleologists' 🎂 Birthdays, December, German Empire
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German Empire 
German mining engineerBirthdays by Profession
- University teacher (29)
- Politician (16)
- Writer (10)
- Engineer (8)
- Entomologist (7)
- Physician (7)
- Botanist (7)
- Chemist (6)
- Zoologist (6)
- Historian (6)
- Film actor (6)
- Physicist (5)
- Painter (5)
- Mathematician (5)
- Explorer (5)
- Military officer (5)
- Chess player (4)
- Art historian (4)
- Stage actor (4)
- Journalist (4)
