Christian feast day: Carlos of Brazil (Brazilian Catholic Apostolic Church)

Carlos Duarte Costa was a Brazilian bishop who became the founder of the Brazilian Catholic Apostolic Church, an Independent Catholic church, and its international communion, which long after his death became the short-lived Worldwide Communion of Catholic Apostolic Churches.

The Brazilian Catholic Apostolic Church is an Independent Catholic Christian church established in 1945 by excommunicated Brazilian Catholic bishop Carlos Duarte Costa. The Brazilian Catholic Apostolic Church is the largest Independent Catholic church in Brazil, with 560,781 members as of 2010, and 26 dioceses as of 2021; internationally, it has an additional 6 dioceses and 6 provinces. It is governed by a president bishop and the Episcopal Council. The church's administration is in Brasilia, Brazil.