What have archeologists learned from studying remains of mound builders

By examining graves at Chaco Canyon, archaeologists found evidence of warfare, cannibalism and scalping. There was also evidence that shelters were built in protected places, possibly to defend themselves against enemies.

Explanation:

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one of the main reasons was definitely slavery. back in 1861, republican abraham lincoln was elected and ended up being a major influence in the slavery business. slavery greatly affected the texas economy because back in 1845 during the annexation of texas, slaves became a big part of the texas population. many texans that were in favor of the secession influenced groups through party ties.

if the government does something the people dont like i tihnk threre would be a revolt