Communication barrier was broken.
Explanation: It is because Morse code was created ago with no telephones and no technology, but when communication came into Morse code, communication broke down.
Dividing government's powers among at least four leaders.
Minoan culute lasted until 1500 BCE
The early 1800s is the pre-industrial era in Europe. The answer would be A. The Roman Empire because by the 1800s, the Roman Empire had a complicated network of coastal shipping and roads with large cities by the Mediterranean and they traded with India and China for goods.