The neutral city Rio de Janeiro (state)

in 1834, city of rio de janeiro transformed neutral city , remaining capital of state, while captainships became provinces, headquarters in niterói, neighboring city. in 1889, city became capital of republic, neutral city became federal district , province state. in 1894, petrópolis became capital of rio de janeiro, until 1902 when niterói recovered capital status. relocation of federal capital brasília in 1960, city of rio de janeiro became guanabara state. niterói remained state capital rio de janeiro state, while rio de janeiro served same status guanabara.