Why do we vote on Tuesdays? And why do states pay for primaries?

Jim Bennett writes a weekly column offering historical context to current events. Bennett served as Secretary of State of Alabama from 1993 – 2003 and from 2013 – 2015. He was a reporter for the Birmingham Post-Herald from 1961 to 1971. He can be reached at: jimbennettwriter58@gmail.com
Source: Why do we vote on Tuesdays? And why do states pay for primaries?