Cartography

This makes your ships move 10% faster.

It costs 10000 wood 6700 rock 12500 silver 8 research points

example of how this works. It takes light ships 2 hours to get to a target 2 hours is 120 minutes 10% of 120 minutes is 12 minutes 120-12 = 108 108 minutes = 1 hour 48 minutes

So now instead of it taking your light ships 2 hours to get to the target, it only takes 1 hour 48 minutes.