What advancements promoted a healthy population?

He seventeenth amendment to the us constitution calls for the direct election of all us senators. this means that the people of each state get to vote to decide who will be their two us senators. before this, the legislatures of each state chose the two us senators from that state with no direct involvement of the average voter. why would this amendment be considered a reform? how would it benefit the people? even today some people claim that the seventeenth amendment was a bad idea. what arguments could be made for reverting selection of us senators back to the state legislatures?

Who was captured in 1430 by the english and burned at the stake in 1431? isabelle philip iv katherine joan of arc

How did americans disagree over the role of federal and state goverment before and durning the civil war