antônio gonçalves dias (; august 10, 1823november 3, 1864) was a brazilian romantic poet, playwright, ethnographer, lawyer and linguist. a major exponent of brazilian romanticism and of the literary tradition known as "indianism", he is famous for writing "canção do exílio" (arguably the most well-known poem of brazilian literature), the short narrative poem "i-juca-pirama", the unfinished epic "os timbiras", and many other nationalist and patriotic poems that would award him posthumously with the title of national poet of brazil. he was also an avid researcher of native brazilian languages and folklore.