▁the ▁name ▁If ug ao ▁which ▁came ▁from ▁the ▁word ▁ip ugo ( human ▁be ings ▁in ▁English ). ▁Although ▁a ▁majority ▁of ▁them ▁already ▁converted ▁to ▁Roman ▁Catholic ▁from ▁their ▁original ▁anim istic ▁religion , ▁from ▁their ▁myth ology , ▁they ▁believed ▁that ▁they ▁desc ended ▁from ▁W igan ▁and ▁Bug an , ▁who ▁are ▁the ▁children ▁of ▁Bak k ay aw an ▁and ▁Bug an ▁of ▁the ▁Sky world ▁( K ab un yan ). ▁Henry ▁Ot ley ▁Bey er ▁thought ▁the ▁If uga os ▁origin ated ▁from ▁Ind o - Ch ina ▁ 2 , 0 0 0 ▁years ▁ago . ▁Felix ▁Ke es ing ▁thought ▁they ▁came ▁from ▁the ▁Mag at ▁area ▁because ▁of ▁the ▁Spanish , ▁hence ▁the ▁rice ▁terra ces ▁are ▁only ▁a ▁few ▁hundred ▁years ▁old . ▁The ▁If ug ao ▁popular ▁ep ic , ▁The ▁Hud h ud ▁of ▁Din ul aw an ▁and ▁Bug an ▁of ▁Gon had an ▁support ▁this ▁interpretation . ▁ ▁D ul aw an ▁thought ▁the ▁If uga os ▁came ▁from ▁the ▁western ▁Mountain ▁Province ▁due ▁to ▁similar ities ▁with ▁K ank ana - e ys ▁culture ▁and ▁language . ▁ ▁As ▁of ▁ 1 9 9 5 , ▁the ▁population ▁of ▁the ▁If uga os ▁was ▁counted ▁to ▁be ▁ 1 3 1 , 6 3 5 . ▁Although ▁the ▁majority ▁of ▁them ▁are ▁still ▁in ▁If ug ao ▁province , ▁some ▁of ▁them ▁already ▁transferred ▁to ▁B agu io ▁City , ▁where ▁they ▁worked ▁as ▁wood car vers