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.
The second survey expedition was sent 
to figure out the length of this route.
La segunda expedición
calculó la longitud de esta ruta.
A segunda expedição topográfica foi
feita para saber o tamanho desta rota.