It's a great profession in my opinion <span />
The name is Pre-Cambrian era
Oracle bones were used during the Shang dynasty to predict the future. The bones were used to process fortune-telling. They were used by Shamans, religious consultants that collaborated with gods and mythical people. The Shamans used the bone's cracks to demonstrate patterns or blemishes to anticipate the future.
Answer:
The development of new cities-Louisville, Cincinnati, St. Louis, and Buffalo-away from the Atlantic coast was possible because they had access rivers that made it easy for them to trade.