A ship is a sea vessel. This is not to be confused with a boat, which is also a sea vessel. The rule of thumb is, "A boat can fit onto a ship, but a ship cannot fit onto a boat." So, a ship is just a huge boat. During the age of sail (SCA period), a ship was any vessel with three square-sail masts and a bowspirit (the little pole jutting out in front).
Ships In History
Since man could dig out a log, man has been making ships. Over the years, they have taken different shapes. Early ships were simply big boats, with expansions on either side to increase space (the catamaran is a perfect example). Biremes and triremes were ships used first by the Hellenes
Don't touch please. I'm going to work on it some more after I come home, but feel free to leave comments and facts. Thanks- WanderingSpy