The swift population rise in the last 2,000 years was caused by an increase in agriculture--since this allowed for people to develop other skills and be healthier--all of which led to an increase in fertility rates.
Their decisions made a big impact in the rights of African americans
Significant changes enacted at the national levels included the imposition of an income tax with the Sixteenth Amendment, direct election of Senators with the Seventeenth Amendment, Prohibition with the Eighteenth Amendment, election reforms to stop corruption and fraud, and women's suffrage through the Nineteenth century
Hope this helps!!
This is a system set up by the founding fathers, people would want to stick with the passed down, original tradition.
It also gives low-population states a say in federal government where higher population states might overwhelm them, if its possible to that is. Plus, in my opinion at least, popular vote is pretty much useless
