Hi Mr Opinion,

You may get a kick out of these, from around 1982 I think, on Filipinos fishing etc. off the Chinese coast a thousand years ago (which probably gives the Philippines the right to declare sovereignty over southern China):

http://asj.upd.edu.ph/mediabox/archive/ASJ-21-1983/scott.pdf

and

http://www.philippinestudies.net/files/journals/1/articles/1696/public/1696-3504-1-PB.pdf

Cheers,

Joe