Refine by:
-
▾ Subject
- Marine navigation (15)
- ASTRONOMY (14)
- MATHEMATICS (9)
- MEDICAL SCIENCES (9)
- Medicine (9)
- Geographical exploration (2)
- Longitude (2)
- Horology (1)
- MUSIC (1)
- Magnetism (1)
- Time Measuring Instruments (1)
-
▾ Date
- 1700s C.E. (15)
- 1800s C.E. (9)
- 1900s C.E. (1)