thumb|A Tagalog speaker, recorded in [[South Africa.]]
Tagalog ( , ; Baybayin: ) is an Austronesian language spoken as a first language by the ethnic Tagalog people, who make up a quarter of the population of the Philippines, and as a second language by the majority. Its standardized and codified form, Filipino, is the national language of the Philippines, and is one of the nation's two official languages, alongside English.
Tagalog is closely related to other Philippine languages, such as the Bikol languages, the Bisaya languages, Ilocano, Kapampangan, and Pangasinan, and more distantly to other Austronesian languages, such as the Formosan languages of Taiwan, Indonesian, Malay, Hawaiian, Māori, Malagasy, and many more.
Classification
Tagalog is a Central Philippine language within the Austronesian language family. Being Malayo-Polynesian, it is related to other Austronesian languages, such as Malagasy, Javanese, Indonesian, Malay, Tetum (of Timor), and Yami (of Taiwan). It is closely related to the languages spoken in the Bicol Region and the Visayas islands, such as the Bikol group and the Visayan group, including Waray, Hiligaynon and Cebuano.
Possible words of Old Tagalog origin are attested in the Laguna Copperplate Inscription from the tenth century, which is largely written in Old Malay. The first known complete book to be written in Tagalog is the Doctrina Christiana (Christian Doctrine), printed in 1593. The Doctrina was written in Spanish and two transcriptions of Tagalog; one in the ancient, then-current Baybayin script and the other in an early Spanish attempt at a Latin orthography for the language.
thumb|Vocabulario de la lengua tagala, 1794.
Throughout the 333 years of Spanish rule, various grammars and dictionaries were written by Spanish clergymen. In 1610, the Dominican priest Francisco Blancas de San José published the Arte y reglas de la lengua tagala (which was subsequently revised with two editions in 1752 and 1832) in Bataan. In 1613, the Franciscan priest Pedro de San Buenaventura published the first Tagalog dictionary, his Vocabulario de la lengua tagala in Pila, Laguna.
The first substantial dictionary of the Tagalog language was written by the Czech Jesuit missionary Pablo Clain in the beginning of the 18th century. Clain spoke Tagalog and used it actively in several of his books. He prepared the dictionary, which he later passed over to Francisco Jansens and José Hernandez. Further compilation of his substantial work was prepared by P. Juan de Noceda and P. Pedro de Sanlucar and published as Vocabulario de la lengua tagala in Manila in 1754 and then repeatedly reedited, with the last edition being in 2013 in Manila.
Among others, Arte de la lengua tagala y manual tagalog para la administración de los Santos Sacramentos (1850) in addition to early studies of the language.
The indigenous poet Francisco Balagtas (1788–1862) is known as the foremost Tagalog writer, his most notable work being the 19th-century epic Florante at Laura.
Official status
thumb|right|[[Diariong Tagalog (Tagalog Newspaper), the first bilingual newspaper in the Philippines founded in 1882 written in both Tagalog and Spanish.]]
Tagalog was declared the official language by the first revolutionary constitution in the Philippines, the Constitution of Biak-na-Bato in 1897.
In 1935, the Philippine constitution designated English and Spanish as official languages, but mandated the development and adoption of a common national language based on one of the existing native languages. After study and deliberation, the National Language Institute, a committee composed of seven members who represented various regions in the Philippines, chose Tagalog as the basis for the evolution and adoption of the national language of the Philippines. President Manuel L. Quezon then, on December 30, 1937, proclaimed the selection of the Tagalog language to be used as the basis for the evolution and adoption of the national language of the Philippines. and the present 1987 constitution (as Filipino).
Controversy
The adoption of Tagalog in 1937 as basis for a national language is not without its own controversies. Instead of specifying Tagalog, the national language was designated as Wikang Pambansâ ("National Language") in 1939. Twenty years later, in 1959, it was renamed by then Secretary of Education, José E. Romero, as Pilipino to give it a national rather than ethnic label and connotation. The changing of the name did not, however, result in acceptance among non-Tagalogs, especially Cebuanos who had not accepted the selection. A compromise solution was worked out—a "universalist" approach to the national language, to be called Filipino rather than Pilipino. The 1973 constitution makes no mention of Tagalog. When a new constitution was drawn up in 1987, it named Filipino as the national language.
Use in education
Upon the issuance of Executive Order No. 134, Tagalog was declared as basis of the National Language. On April 12, 1940, Executive No. 263 was issued ordering the teaching of the national language in all public and private schools in the country.
Article XIV, Section 6 of the 1987 Constitution of the Philippines specifies, in part:
Under Section 7, however: