of them already transferred to Baguio, where they worked as woodcarvers, and to other parts of the Cordillera region. They are divided into subgroups based on the differences in dialects, traditions, and design/color of costumes. The main subgroups are Ayangan, Kalangaya, and Tuwali. Furthermore, the Ifugao society is divided into 3 social classes: the kadangyans or the aristocrats, the tagus or the middle class, and the nawotwots or the poor ones. The kadangyans sponsor the prestige rituals called hagabi and uyauy and this separates them from the tagus who cannot sponsor feasts but are economically well off. The nawotwots are those who have limited land properties and are usually hired by the upper classes to do work in the fields and other services. Kalanguya/Ikalahan The Kalaguya or Ikalahan people are a small group distributed amongst the mountain ranges of Sierra Madre, the Caraballo Mountains, and the eastern part of the Cordillera mountain range. The main population resides in the Nueva Vizcaya province, with Kayapa as the center. They are considered to be part of the Igorot (mountain people) but distinguish themselves with the name Ikalahan, the name taken from the forest trees that grow in the Caraballo Mountain. They are among the least studied ethnic groups, thus their early history is unknown. However, Felix M. Keesing suggests that, like other groups in the mountains, they fled from the lowlands to escape Spanish persecution. Isneg The Isnag, also Isneg or Apayao, live at the northwesterly end of northern Luzon, in the upper half of the Cordillera province of Apayao. The term "Isneg" derives from itneg, meaning inhabitants of the Tineg River. Apayao derives from the battle cry Ma-ap-ay-ao as their hand is clapped rapidly over their mouth. They may also refer to themselves as Imandaya if they live upstream, or Imallod if they live downstream. The municipalities in the Isneg domain include Pudtol, Kabugao, Calanasan, Flora, Conner, Sta. Marcela, and Luna. Two major river systems, the Abulog River and the Apayao River, run through Isnag country. Jars of basi are half-buried in the ground within a small shed, abulor, constructed of 4 posts and a shed. This abulor is found within the open space, linong or sidong, below their houses (balay). They grow upland rice, while also practicing swidden farming and fishing. Say-am was an important ceremony after a successful headhunting, or other important occasions, hosted by the wealthy, and lasting