REMOVE

1. Hainan Sheng (China)
2. Strait of Malacca
3. Malacca (Malacca, Malaysia) …
4. Paracel Islands
5. Macao (China)

WHAT

1. Manuscripts (1)
2. Sea Charts (1)

WHERE

1. Andaman Sea (1)
2. Bay of Bengal (1)
3. Cambodia (1)
4. Ceylon (1)
5. China (1)
6. Gulf of Tonkin (1)
7. Hainan Sheng (China) (1)
8. Indian Ocean (1)
9. Macao (China) (1)
10. Malacca (Malacca, Malaysi … (1)
11. Myanmar (1)
12. Philippines (1)
13. South China Sea (1)
14. Sri Lanka (1)
15. Sumatra (Indonesia) (1)
16. Taiwan (1)
17. Thailand (1)
18. Vietnam (1)

WHEN

1. 1787 (1)