It was lowered in the year 1971
no because 16 year olds don't take voting seriously
1965
16
The growth in public sentiment for a lowered voting age is for increased public participation.
26th
The 26th Amendment to the US Constitution lowered the voting age to 18 years of age and was adopted on July 1, 1971.
26th Amendment
It lowered it to 18 from 21.
The Twenty-sixth Amendment (Amendment XXVI) of the United States Constitution standardized the voting age to 18. It was adopted in response to student activism against the Vietnam War and to partially overrule the Supreme Court's decision in Oregon v. Mitchell. It was adopted on July 1, 1971 http://en.wikipedia.org/wiki/Twenty-sixth_Amendment_to_the_United_States_Constitution
President Richard Nixon lowered the voting age from 21 to 18 in April 1971.
Amendment 26
26th amendment