Technology is probably the answer that you need. Other answers such as internet, cell phones, and airplanes are suitable answers as well.
The Sherman Act also outlawed contracts, conspiracies, and other business practices that restrained trade and created monopolies within industries. For example, the Sherman Act says that competing individuals or businesses can't fix prices, divide markets, or attempt to rig bids
During colonial periods, good were most commonly transported on river, thats why early civilizations lived close to rivers.
<span>Great Britain claimed all of North America East of the Mississippi River (ownership of Ohio River Valley)</span>
