Military Inventions 

As armor improved so did the swords. Swords needed to improve because armor became heavier and harder to penetrate. The hilt improved by making it where your hands where more protected in battle. During the making of the sword they would put a groove in it making it lighter but still have all of its strength.  

Ships improved by using oarsmen instead of sails. At first they used only one row of oarsmen in battle. Then they decided that they should add another row of oarsmen. And so they added another row of oarsmen and went into battle they thought that was good so after that they added another row. This made them more mobile instead of relying on the wind. They had a copper ram at the front of the ship that was below sea level.They used that to ram other ships and them open or put a hole in the ship so the water would come through and sink the ship.