1. The first stage of the struggle to extend voting rights came in the early 1800s
2. The second major effort to broaden the electorate following the Civil War.
3. The 19th amendment prohibited the denial of the right to vote because of sex.
4. A fourth major extension took place during the 1960s.
5. The fifth and latest expansion of the electorate came with the adoption of the 26th Amendment in 1971.
