There are quite a few devices that have made sea exploration as you know it possible. Submarines are one of these devices.
Sextants and Octants.
The Compass
What points did sailors use to navigate
With Compasses and maps
Sailors focused on the stars to navigate through unknown territory
Sailors focused on the stars to navigate through unknown territory
Polaris, the North Star.
The moon and stars.
So that they can know where theyre and can navigate
donno?
donno?
The stars and constellations helped them navigate.
it told them which direction they were going.
compass