The document provides a history of Abra province in the Philippines and key details about its demographics, landmarks, and festivals. Abra was originally settled by the Bontoc and Ifugao people and others from the Tingguian and Itneg groups. It became a province in 1917. The population speaks mainly Ilocano and Itneg and grew at a rate of 1.2% from 1990 to 2010. Famous landmarks include the Cathedral of Bangued, Northern Luzon Heroes Hill National Park, and the Abra-Manila North Road. Festivals celebrated are the Kawayan Bamboo Festival, Dapil Sugarcane Festival, and Arya Abra Cultural Festival.