What were the hopewell and mississippian mound builders skilled at?

The "Hopewell Indians" are a specific cultural division of the "Mound Builders" and is used to describe a general cultural influence and or era of the 4,000 year history of th … ese peoples; specifically it describes a period of history dating around 1,000 BC of the Woodland Period located in the present day states of Illinois and Ohio.

the tariff was created to protect industry in the northern part of the united states. industries in the north were being driven out of business by imported goods that were priced at a low rate. the goal was to protect these industries   by taxing the goods.