REMOVE

1. Sea Charts
2. Manuscripts
3. Harbors

WHAT

1. Nautical charts (3)
2. Early maps (1)

WHERE

1. Africa, East (1)
2. Asia (1)
3. Borneo (1)
4. Cambodia (1)
5. Ceylon (1)
6. China (1)
7. India (1)
8. Indian Ocean (1)
9. Indonesia (1)
10. Iran (1)
11. Japan (1)
12. Korea (1)
13. Malaysia (1)
14. Mediterranean Sea (1)
15. Myanmar (1)
16. Papua New Guinea (1)
17. Paracel Islands (1)
18. Philippines (1)
19. Southeast Asia (1)
20. Thailand (1)
21. Vietnam (1)
22. World (1)

Less

WHO

1. Albernaz, João Teixeira, … (2)
2. Attayde, Jeronimo de (2)
3. Albernaz, João Teixeira, … (1)
4. Oliva, Placido, active 15 … (1)

More 

WHEN

1. 1630 (2)
2. 1575 (1)
3. [1630] (1)