Campina Grande is the second most populous Brazilian city in the State of Paraíba after João Pessoa, the capital. It is considered to be the most important city of the Northeastern Brazilian subregion called agreste. It is considered one of the main industrial, technological and educational centers in the northeastern region of Brazil. Settled in the 17th century, the city was officially established in 1864. Campina Grande also has a large cultural agenda, including the world's largest Saint John's Festival (called O Maior São João do Mundo), which takes place during the entire month of June. The founding of Campina Grande is credited to Captain Teodósio de Oliveira Ledo who led a group of Ariús Indians to settle the land and begin farming on December 1, 1697. However, some historians do not agree with this version and suggest that the place was already a settlement and named Campina Grande when Teodósio arrived with the Ariús. This position is certainly supported by the fact that Campina Grande is in a critical geographic location for people travelling between the highlands and the coast. The political actions of Teodósio in mentioning Campina Grande to the king of Portugal in May 1699 went a long way to establishing the location as place of importance.