Part one of term paper
There were many political and technological changes that prompted the world explorations and . The Portuguese were the main contributors to the technological changes that lead to the . However, the change of the political structure of Spain ultimately lead to the discovery. There were many technological changes that the Portuguese contribu ...

Part two of term paper
... square rigging in the right proportion to produce a superb oceangoing vessel. They also used a compass and astrolabe to accurately record maps and latitude. In addition, they were the first to mount cannons on their deck so that they could defeat any other ship in combat on the waters. Prior to this invention, vessels that were in war with each other needed to "pull alongside" the other vessel and board them to fight. With the cannons on deck, this was no longer necessary. The Portuguese co ...