Why was the gadsten purchase important united states

The Gadsden Purchase was the purchase of land in what is today Arizona and New Mexico from Mexico.

It was essential for the completion of the transcontinental railroad.

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.

i believe it was the shinto