Has rio de janeiro always been that name???

Question

thanx really need it bad for a report.

Answer 1

"The city was founded on March 1, 1565, by Portuguese knight Estácio de Sá, who called it São Sebastião do Rio de Janeiro 20 (St Sebastian of the January 20th River), in honour of Saint Sebastian (day of death traditionally on January 20). For centuries, the settlement was commonly called São Sebastião – or even 'Saint Sebastian' – instead of the currently popular second half of its name."