Border ruffians contributed to the "bleeding Kansas" problem by actively terrorizing citizens of the free state. The Border ruffians came from the slave state of Missouri and in an attempt to change attitudes through force, they would actively terrorize opponents to their pro-slavery stance. The "bleeding Kansas" problem occurred as is was decided around the time of 1950 that the settlers themselves would choose whether Kansas was a free or slave state. This resulted in a flood of people from both sides rushing to settle Kansas in order to gain another state that aligned with their particular values. The period lasted until about 1959-60 and animosity persisted through the civil war.
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So much so that carbon emissions from coal in the U.S. electricity sector are more than 50% lower today than just a decade ago. This is a result of the declining economics of coal power plants due to low natural gas prices, increasing numbers of low-cost renewable plants, and more stringent environmental regulations.
Since you are developing an argument that would be 1450 and 1750
I have 2. The Great Depression affected people’s lives because there was money loss and no one could afford anything which made everyone depressed