Refine by:
-
▾ Subject
- Longitude (49)
- ASTRONOMY (47)
- Geographical exploration (43)
- Marine navigation (43)
- Nautical instruments (37)
- Navigational aids (33)
- Discoveries in geography (23)
- Navigation (23)
- TRAVEL (23)
- Aids to navigation (19)
- Maps (19)
- Time Measuring Instruments (11)
- Navigation (science) (6)
- Ocean currents (5)
- Horology (4)
- Magnetism (4)
- Legislation (3)
- PUBLISHING (2)
- ANTHROPOLOGY (1)
- SCIENCE (1)
-
▾ Date
- 1700s C.E. (77)
- 1800s C.E. (8)