[Notes 1][1][2] Currently, it It is located within a quadrilateral formed by São João, Conselheiro Crispiniano, Rio Branco and Dom José de Barros streets.

From the 1920s onwards, with the expansion of the city into the Anhangabaú Valley and the formation of the Centro Novo, the Paiçandu area began to receive proper attention.

[5] On May 1, 2018, the former Wilton Paes de Almeida Building, located in Largo do Paiçandu, suffered a fire and collapsed, leaving several families who occupied the property irregularly homeless.

In 1920, the seasons of the Irmãos Queirolo and Alcebíades & Seyssel Companies, whose attraction was the clown Piolin, left their mark on São Paulo.

The venue was famous for its cinemas of different sizes and for its series of establishments such as theaters, dance halls, nightclubs and cabarets that contributed to the place's fame.

With the drainage of the area and the canalization of the Anhangabaú River, the name was changed in homage to the conflict that took place in the city of Paysandu, in Uruguay, in 1865.