Region 1 was the first inhabited by the aboriginal Negritos before being pushed by successive waves of Malay immigrants that penetrated the narrow coast.
Tingguians inhabit the interior of Region 1, while Ilocanos are in the north.
Pangasinense settle in the south of Region 1.
Not all the inhabitants of Region 1 are Ilocanos.
In the 16th century, the Spanish arrived in Region 1 and established Christian missions and governmental institutions.
Region 1 came under American colonial rule in 1901.
Region 1 was under Japanese occupation in 1941.
Region 1 was liberated by the combined American and the Philippine Commonwealth troops, including Ilocano and Pangasinense guerillas from Japanese forces during theSecond World War in 1945.
Several modern presidents of the Republic of the Philippines hailed from the region known as Region 1, including Elpidio Quirino, Ferdinand Marcos, and Fidel V. Ramos.
Before the formation of the Cordillera Administrative Region, Region 1 also included the provinces of Abra, Mountain Province and Benguet.
Before Ferdinand Marcos modified Region 1, Pangasinan was not part of the region.
The dialect of language used in Region 1 are Ilocano and Pangasinense.
Tagalog and English are the medium of instruction in schools in Region 1.
Ilocano is widely used by the majority of people in Pangasinense, spoken in the central towns of Pangasinan.
Region 1, located in the northwest Luzon, borders to the east the regions of the Cordillera Administrative Region and Cagayan Valley.
Region 1 occupies the narrow plain between the Cordillera central mountain range and the South China sea.
Region 1 occupies the northern portion of the central Luzon plains, to the north east of the Zambales Mountains.
The Agno River runs through Pangasinan and empties into a broad delta in the vicinity of Lingayen and Dagupan City.
Region 1 is a leading producer of tobacco, rice, corn, vegetables, root crops, and fruits such as mangoes.
Region 1 has natural resources including limestone for cement and feldspar for ceramic.
Pangasinense refers to themselves as Pangasinense, from the word “Asin” meaning “salt” in Pangasinan language.
Tourist attractions in Region 1 include Calle Crisologo, the most famous and major tourist magnet in Vigan, San Agustin Church, Bangui Windmills, Paopay Sand Dunes, Kapurpurawan Rock Formation, and Patapat Viaduct.
Ilocanos refer to themselves as Samtoy, from the Ilocano phrase “Sao mi dioy” meaning ‘our language here.
The term "Ilocano" originates from the word "Iloco" or "Yloco".
Ethnic groups in Region 1 include Ilocanos, the third largest Filipino ethnolinguistics group.
Pangasinense, the eighth largest Filipino ethnolinguistics group.
Religion in Region 1 is predominantly Roman Catholic with strong adherents of Protestantism such as the Aglipayan denomination further north of the country.
Calle Crisologo is the most famous and major tourist magnet in Vigan.
Bangui Windmills is a wind farm in Bangui, Ilocos Norte, Philippines.