Southern Tagalog, designated as Region IV, was an administrative region in the Philippines that comprised the current regions of Calabarzon and Mimaropa, the province of Aurora in Central Luzon, and most of the National Capital Region. It was the largest region in the Philippines in terms of both land area and population. After its partition on May 17, 2002, Southern Tagalog continues to exist as a cultural-geographical region.
Teresa, officially the Municipality of Teresa, is a 2nd class municipality in the province of Rizal, Philippines. According to the 2020 census, it has a population of 64,072 people.
Aeta, Agta and Dumagat, are collective terms for several indigenous peoples who live in various parts of Luzon island in the Philippines. They are included in the wider Negrito grouping of the Philippines and the rest of Southeast Asia, with whom they share superficial common physical characteristics such as: dark skin tones; short statures; frizzy to curly hair; and a higher frequency of naturally lighter hair colour (blondism) relative to the general population. They are thought to be among the earliest inhabitants of the Philippines—preceding the Austronesian migrations. Regardless, the modern Aeta populations have significant Austronesian admixture, and speak Austronesian languages.
Tanay, officially the Municipality of Tanay, is a 1st class municipality in the province of Rizal, Philippines. According to the 2020 census, it has a population of 139,420 people.
Mariveleño is a Sambalic language. It has around 500 speakers and is spoken within an Aeta community in Mariveles in the Philippines.
The Mamanwa language is a Central Philippine language spoken by the Mamanwa people. It is spoken in the provinces of Agusan del Norte and Surigao del Norte in the Lake Mainit area of Mindanao, Philippines. It had about 5,000 speakers in 1990.
Arta is a highly endangered Negrito language of the northern Philippines.
Dupaningan Agta, or Eastern Cagayan Agta, is a language spoken by a semi-nomadic hunter-gatherer Negrito people of Cagayan and Isabela provinces in northern Luzon, Philippines. Its Yaga dialect is only partially intelligible.
Manide is a Philippine language spoken throughout the province of Camarines Norte in Bicol region and near the eastern edge of Quezon in Southern Tagalog of southern Luzon in the Philippines. Manide is spoken by nearly 4,000 Negrito people, most of whom reside in the towns of Labo, Jose Panganiban, and Paracale.
The Negrito peoples of the Philippines speak various Philippine languages. They have more in common with neighboring languages than with each other, and are listed here merely as an aid to identification.
Inagta Rinconada is a Bikol language spoken by a semi-nomadic hunter-gatherer Agta (Negrito) people of the Philippines. It is spoken to the east of Iriga City up to the shores of Lake Buhi. The language is largely intelligible with Mount Iraya Agta on the other side of the lake.
Southern Alta, is a distinctive Aeta language of the mountains of northern Philippines. Southern Alta is one of many endangered languages that risks being lost if it is not passed on by current speakers. Most speakers of Southern Alta also speak Tagalog.
Northern Alta is a distinctive Aeta language of the mountains of the Sierra Madre in Aurora province, Northern Philippines. Linguist Lawrence Reid reports two different Alta languages, Northern and Southern Alta, which form one of the high nodes of the Northern Luzon languages, together with the South-Central Cordilleran subgroup. Although the Alta languages are genetically related, they have a low level of mutual intelligibility.
Casiguran Dumagat Agta, also known as Casiguran Agta, is a Northeastern Luzon language spoken in the northern Philippines. It is spoken by around 610 speakers, most of whom live in the San Ildefonso Peninsula, across the bay from Casiguran, Aurora.
Kasiguranin (Casiguranin) is a Tagalogic language that is indigenous to the Casiguran town of Aurora in the northern Philippines. It is descended from an early Tagalog dialect that had borrowed heavily from Northeastern Luzon Agta languages, and, to a lesser extent, from Ilocano, Bikol languages, Kapampangan, Gaddang, Itawis, Ibanag, and Paranan, which were spoken by settlers from other parts of the Philippines.
Central Cagayan Agta, also known as Labin Agta, is an Aeta language of northern Cagayan Province, Philippines. It is spoken by the Aeta Negritos in inland areas located to the east and northeast of Baggao (Ethnologue).
Umiray Dumaget is an Aeta language spoken in southern Luzon Island, Philippines.
Inagta Alabat is a Philippine Negrito language spoken in central Alabat Island, Philippines. Its speakers began arriving on the island in the 1970s but originated from Villa Espina in Lopez, with earlier settlements in Gumaca and perhaps other towns. Predating the Agta on Alabat Island were communities of individuals self-identifying as "dumagat" but who now only speak Tagalog as a native language. Less than a dozen individuals can still speak the Inagta Alabat language whether on Alabat Island, where it is being lost in favor of Tagalog, or in Lopez, where it is being replaced by the language of the Manide who have migrated to the area in large numbers and intermarried with the Agta, and also replaced by Tagalog. Those Agta who can still speak the Inagta language in Lopez speak the same language as the Agta who have migrated to Alabat over the past 50 years. Other Agta in Lopez either speak only Manide, or a mixture of Manide and Inagta Alabat-Lopez.
The Kaliwa Low Dam was proposed by the Philippine Government in 2012, was one of several bulk water supply projects on the upper portion of the Kaliwa River Watershed that have been proposed but ultimately shelved by the Philippine Government since the 1970s.
Several bulk water supply projects on the upper portion of the Kaliwa River Watershed have been proposed by the Philippine Government since the 1970s, with the intent of relieving Metro Manila of its overdependence on the water supplied by Angat Dam. Most of these have focused on a particular site in Barangay Laiban in Tanay, Rizal, on the upper portion of the Kaliwa River Watershed to which the Laiban Dam belongs, and the projects have thus often been referred to as Laiban dam or Kaliwa dam, although multiple projects have been referred to using either name.
