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 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. In 1939, President Quezon renamed the proposed Tagalog-based national language as Wikang Pambansâ (national language). Under the Japanese puppet government during World War II, Tagalog as a national language was strongly promoted; the 1943 Constitution specifying: The government shall take steps toward the development and propagation of Tagalog as the national language.". In 1959, the language was further renamed as "Pilipino". Along with English, the national language has had official status under the 1973 constitution (as "Pilipino") and the present 1987 constitution (as Filipino). Controversy The adoption of Tagalog in