Anti-war protesters at the University of Wisconsin in Madison in 1967. The activism of the 1960s made it easy to mobilize liberals and students.

16-Year-Olds Want a Vote. Fifty Years Ago, So Did 18-Year-Olds.

In 1969, three college students in New Jersey built a network of 10,000 volunteers to lower the voting age. Now, campaigns are sprouting up again.

nytimes.com