REMOVE

1. Philippines -- Maps
2. Paracel Islands
3. Cambodia
4. Hainan Island (China)
5. Borneo

WHAT

1. Borneo -- Maps (1)
2. China -- Maps (1)
3. Manuscripts (1)
4. Sea Charts (1)

More 

WHERE

1. Celebes Sea (1)
2. China (1)
3. China Sea (1)
4. Hainan Island (China) (1)
5. Japan (1)
6. Korea (1)
7. Malaysia (1)
8. Philippines (1)
9. Southeast Asia (1)
10. Taiwan (1)
11. Thailand (1)
12. Vietnam (1)

WHO

1. Blaeu, Joan, 1596-1673, c … (1)

WHEN

1. 1666 (1)