[5] The district of Quiapo, Manila is also named after the same plant, this is the Tagalog counterpart, modern spelling kiyapo.
[6] Pangasinenses from Paniqui, Tarlac who used to pasture their cattle, other Pangasinenses from Calasiao and San Carlos, Pangasinan, Ilocano foresters from Santa Maria, Narvacan, Ilocos Sur; Paoay and Batac in Ilocos Norte; and some Tagalogs from Bulacan & south Nueva Ecija settled in great number in the town.
It was in 1901 during the American Civil Commission that Rosales, together with Balungao, Umingan, San Quintin, were segregated from Nueva Ecija and became parts of Pangasinan.
On October 29, 1859, Cuyapo was separated from Rosales, Pangasinan and made a full-fledged town with Don Juan Pangalilingan as the first Gobernadorcillo.
On June 19, 1898, two to three hundred Cuyapenos, under Teniente Isabelo del Valle of Paniqui, Tarlac, answered the call of duty and ambushed a heavily armed contingent of Spanish Cazadores who came from Rosales en route to Tarlac in Bessang (now part of Barangay Maycaban.