Why did the traders establish trading posts along rivers and other waterways?

Why did the traders establish trading posts along rivers and other waterways?

Because the people of that time probably traveled by boat, so that would be an easy place to meet to trade.

Hope this helps

lee and grant, both of whom held the highest rank in their respective armies, had known each other slightly during the mexican-american war (1846-48) and began their dialogue by exchanging awkward personal inquiries. characteristically, grant had arrived in his mud-splattered field uniform while lee had turned out in full dress attire, complete with sash and sword.

explanation:

a sample of water is taken and kept in a beaker in a freezer at a constant temperature of 0°c. if the system is at dynamic equilibrium, which of these statements is true?