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. It is located east of Manila, although a typical commute between Manila and Tanay will take between one and three hours depending upon traffic conditions. It contains portions of the Sierra Madre Mountains and is bordered by Antipolo in the north-west, Baras, Morong and Teresa in the west, General Nakar (Quezon Province) in the east, and Pililla, Santa Maria (Laguna province) as well as the lake Laguna de Bay in the south. It is the epicenter of the Tanay Tagalog dialect, which has the deepest modern Tagalog words in the Tagalog language and is the only endangered Tagalog dialect. History Tanay was settled by early Austronesian people. Shortly after the conquest and subjugation of Manila by the Spaniards and the surrounding lake areas by Juan de Salcedo in 1570–1574, Franciscan missionaries arrived to Christianize the inhabitants of what is now the Morong-Pililla area. In 1583, both Morong and Pililla were created as separate towns with Tanay forming part of Pililla. Tanay was founded as a separate pueblo (town) in 1606 under the name "Monte de Tan-ay". In 1620, administration was moved to San Antonio (now called Inalsan or Pantay) and Tandang Kutyo. In 1638, the town was burned during an uprising of Chinese living in the area, and the town was rebuilt in 1640 at the present day location. In 1747, the town of Tanay consisted of only eight barangays, namely Nuestra Senora del Rosario, Sa Josep, San Ildefonso de Tanay, San Francisco de Maytubig, San Pedro de Alcantara, San Lucas y San Antonio, San Apostol, and San Agustin de Balugbog. In 1853, a new political subdivision was formed. The town of Tanay together with Morong, Baras, Pililla, Angono, Binangonan and Jalajala form the Province of La Laguna, with the capital at Morong. This district was later changed to Distrito Politico-Militar de Morong after four years. Tanay became a Municipality in 1894 as an effect of the Spanish Maura Law. The first election of Public Office took place in 1895–1898 and 1898–1900 under the Revolutionary Government of the Philippines. Tanay members of the Katipunan fought valiantly during the Revolution against Spain. The town was the headquarters of the second military area of the Philippine Revolutionary Government under General Emilio