If you've gone as far as asking Google this, you've probably found yourself in a dilemma – but we're here to clear things up for you! traduzido por: OPENROUTER
Submitted at Jul 1, 2026, 9:00 AM

MASP- projetado por Lina Bo Bardi | (Hans Gunter Flieg/Divulgação)
A controversial issue revolves around July 1st: is this the official date of World Architecture Day? If you went so far as to ask Google, you were probably left in a dilemma – but we are here to explain it to you!
World Architecture Day was established in 1949 with a worldwide celebration scheduled for July 1st, as claimed by the oldest existing records. However, in 1996, the International Union of Architects (UIA), which represents architects and urban planners around the world, changed the original date to always take place on the first Monday of October, coinciding with World Habitat Day, founded by the UN in 1986. Therefore, the disagreement over this date still persists, because many countries continue to celebrate World Architecture Day on the original date, that is, July 1st.
Registro do MASP em construção | (Luiz Hossaka - Arquivo da Biblioteca e Centro de Documentação do MASP/Divulgação)
The celebration of World Architecture Day here in Brazil officially takes place on the first Monday of October, according to the Council of Architecture of Brazil (CAU/BR) and the Institute of Architects of Brazil (IAB).
Another important date for architecture, in Brazil, is December 15th, the Architect's Day and, also, the birthday of Oscar Niemeyer. For this celebration, there is no date confusion!
O arquiteto brasileiro Oscar Niemeyer no Museu Oscar Niemeyer em Curitiba | (Nani Goes/Divulgação)
traduzido por: OPENROUTER