What common physical feature do charleston and boston share

Both Charleston and Boston are cities in the North Eastern region of the United States with easy access to the Atlantic Ocean; thus, they were very important during and after the colonial period (for commerce), and that's why they both have witnessed significant physical and economic development (urbanization and expansion/growth) throughout the years.

a goverment for the people by the people

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.