Why do we need to change the concept of history from exclusivity to inclusivity in accepting historical sources and evidences?​

So, we don't repeat the history

Explanation:

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.

during world war ii