REMOVE

1. China -- Maps
2. Philippines
3. China
4. Hainan Island (China)
5. Celebes Sea
6. Taiwan

WHAT

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

More 

WHERE

1. Borneo (1)
2. Cambodia (1)
3. China Sea (1)
4. Hainan Island (China) (1)
5. Japan (1)
6. Korea (1)
7. Malaysia (1)
8. Paracel Islands (1)
9. Southeast Asia (1)
10. Thailand (1)
11. Vietnam (1)

WHO

1. Blaeu, Joan, 1596-1673, c … (1)

WHEN

1. 1666 (1)