It's easy to take something like "knowing where anything is" for granted, but somebody had to go out into the world and take note of all those  natural and cat-made borders. In the case of Japan, it fell to Ino Tadataka to create the first "complete" map of the nation.
There were no accurate maps 
of Japan at the time...
No había mapas precisos de Japón.
Não existia nenhum mapa do
Japão preciso naquela época...