KQEQ (NPR San Francisisco Affiliate) put together this timeline document – which only goes through 2002.  https://a.s.kqed.net/pdf/education/digitalmedia/us-voting-rights-timeline.pdf  – The next article moves into 2018.

This article is dated from November 2019, so it’s missing the efforts in 2020 (and amid pandemic) to interfere access to voting.  But it’s a good overall summary of LAW put in place and reversed with implications on every American’s ability to vote.

View timeline here: https://www.carnegie.org/topics/topic-articles/voting-rights/voting-rights-timeline/

Intro:

The struggle for equal voting rights dates to the earliest days of U.S. history. Now, after a period of bipartisan efforts to expand enfranchisement, Americans once again face new obstacles to voting