The building was built in the late 1950s and opened in 1962, to house the International Industry and Trade Exposition during the government of Juscelino Kubitschek. The construction was a venture by businessman Joaquim Rolla.
Image taken from rederiohoteis.com
Photo taken from zeluizfoto.wordpress.com
Luiz Gonzaga (1912–1989) was a Brazilian musician. An accordion player, singer, and composer, he was responsible for promoting Northeastern rhythms, bringing baião, xote, and xaxado to the entire country. The song "Asa Branca," created in partnership with Humberto Teixeira and recorded by Luiz Gonzaga on March 1, 1947, is considered the anthem of Brazil's Northeast.
Photo taken from wikipedia.com
Since he was a boy, Luiz Gonzaga was already handling the hoe, but he preferred to watch his father play his accordion, and he soon learned to play and liven up the region's little parties. He grew up helping his father in the fields and with the accordion, but he also did small jobs for the region's farmers.
Luiz Gonzaga was under the protection of Colonel Manuel Aires de Alencar and his daughters, and it was with them that he learned to read, write, and speak correctly. At 13 years old, with the money he had saved and what the colonel lent him, Luiz bought his first accordion. The first money he earned was for playing at a wedding, and it was then that he felt music was his destiny.
The São Cristóvão Fair
The history of this place begins in 1945, when migrants (retirantes) coming from the Northeast arrived at Campo de São Cristóvão on trucks (paus de arara) to work in civil construction. The end of the journey and the reunion with relatives and fellow countrymen who were already in Rio were celebrated with plenty of music and food. This informal celebration gave rise to the fair, which remained around the field for 58 years.
In the 1960s, the São Cristóvão Pavilion was built, designed by architect Sérgio Bernardes, with the purpose of housing international exhibitions. Until the late 1980s, the venue hosted major events, such as the Auto Show and industrial fairs. But this did not drive away the vendors, and stalls were set up and taken down every weekend.
In 2003, the old pavilion was renovated by the city government, and the fair, already legalized since 1982, began operating inside the Centro Municipal Luiz Gonzaga de Tradições Nordestinas. The workers were given masonry stalls with roofing, in a space of 24,000 square meters. The venue has 3 stages and 5 squares named after Northeastern artists and cities.
Image taken from WikiRio.com.br
In December 2008, the city hall declared the Centro Municipal Luiz Gonzaga de Tradições Nordestinas a Cultural Heritage site for the residents of the city of Rio de Janeiro, in order to preserve the space and the northeastern characteristics represented there. In 2010, a federal law made the São Cristóvão fair an Intangible Cultural Heritage of Brazil.
It seems that no source text was actually provided—only the label "Fontes:" (meaning "Sources:") appears. Could you please share the PT-BR text you'd like translated?
https://www.sopacultural.com/noticias/feira-de-sao-cristovao-completa-75-anos-e-mantem-viva-as-tradicoes-nordestinas/