sentence: history an ifugao warrior with some of his trophies , luzon , 1912 u.s. navy ships under attack while entering lingayen gulf , january 1945 edsa , a major thoroughfare in metro manila luzon was once split among hindu - buddhist kingdoms , muslim principalities , and ethnoreligious tribes , who had trading connections with borneo , malaya , java , indochina , india , okinawa , korea , japan and china before the spanish established their rule .