The longitude problem wasn't really even solved until 1773 https://en.wikipedia.org/wiki/History_of_longitude
Using GPS in the Year 1565
31–32 of 32 posts
Re: Using GPS in the Year 1565
#32(Not the same thing, but related)
Map platforms from Brazilian cities that allow browsing with old map layers:
Curitiba 1857
https://geocuritiba.ippuc.org.br/portal/apps/webappviewer/in...
São Paulo 1930
https://geosampa.prefeitura.sp.gov.br/PaginasPublicas/_SBC.a...