Santa Ana the first and the oldest of the three kingdoms of "Namayan" (the now City of Manila), also called Kingdom of Sapa later be called "Maysapan" and Christianized into "Santa Ana de Sapa" now simply as Santa Ana, has Estero de Santa Clara and the longest Estero Tripa de Gallina. This long estero wasthe main reason why Maysapan or Santa Ana was easily reached by Chinese mechant's Junk boats bartering their Chinese goods with the locals. "Tripa de Gallina" (chicken intestine), drains water from Manila, Paco, San Andres, Makati as far as Forbes Park, Fort Bonifacio and then through Buendia Avenue in Makati and Pasay (including Bangkal and Don Bosco Makati) and then in Paranaque. Dumps water into Manila Bay via the Paranaque River at an intersection near western side of the NAIA runway.
Dahil sa "Spanish Inquisition" ang mga Kastilang Muslim at Hudyo ay nangagsilisan at nagibangbayan, karamihan sa kanila ay nakipagsapalaran, naging marino at nanatili sa kolonyang Amerika. Pati na rin ang mga iba't ibang etniko na Basco, Catalan at Gallego na nais ay humiwalay sa Espana at autonomo ang nais sa kanilang sakop na bayan, karamihan din sa kanila'y nilisan ang Espana. Karamihan sa mga etnikong nagnanais ng autonomo na nagtungo sa Mexico at napapunta sa Pilipinas na naging Gobernador Heneral ng Filipinas, na mga Basco - Legazpi, De Echevarri, Sarrio, Equia, Escudero, Echague, atbp... Ang mga Catalan - De Guzman, Cramer, Despujol, atbp...