The municipality of Aglipay, Quirino was named in honor of the late Gregorio Aglipay, the head of the only existing religious sect in the community at that time. It was created through Executive Order No. 368 signed by the then President Elpidio Quirino on 11 November 1950 which reorganized the municipalities and municipal districts of the province of Nueva Vizcaya. It became one of the ten municipalities of the said province with an area of approximately forty one thousand one hundred twenty six (41,126) hectares. Its first seat of government was at Barangay Guinalbin with the late Hon. Gregorio Divina as its first appointed town Executive. It was then composed of only six barangays and inhabited mostly by Christians from the lowlands comprised mostly of Ilocano’s with some non-Christians tribes.