From the longer Wikipedia page 
Tocantins (Brazilian Portuguese: [tokɐ̃ˈtʃĩs] ) is one of the states of Brazil. (From: Tukã´, Toucan + tï, beak. lit. "Toucan's beak" in Tupi language). It is the newest of the 26 Brazilian states, formed in 1988 and encompassing what had formerly been the northern two-fifths of the state of Goiás. Tocantins covers 277,620.91 square kilometres (107,190.03 sq mi) and has a population of 1,496,880 (2014 est.). Construction of its capital, Palmas, began in 1989; most of the other cities in the state date to the Portuguese colonial period.