If you are asking about the United States, the change took place in 1971, as a result of the 26th Amendment to the Constitution, which gave 18 year olds the right to vote. There had been some discussion of doing this as early as World War II, but many historians credit the controversy over the Vietnam War with giving momentum to lowering the voting age. After the 26th Amendment was ratified in July 1971, it became official.
The 26th Amendment to the Constitution (granting suffrage to all citizens age 18 and up) was ratified on July 1, 1971.
21, 1972
It lowered it to 18 from 21.
Twenty-sixth amendment
In 1971 it lowered the age from 21 to 18. Since that time adulthood starts at 18.
27th change of voting age from 21 to 18. This happened in 1971.
The voting age in 1960 was 21. Men and women and all people of color were allowed to vote if over that age.
1971 the 26th amendment changed the voting age from 21 to 18.
President Richard Nixon lowered the voting age from 21 to 18 in April 1971.
26th amendment
21 to 18
The 26th Amendment to the Constitution (granting suffrage to all citizens age 18 and up) was ratified on July 1, 1971.
21, 1972
the Vietnam War.
In 1959, the legal voting age in Minnesota was 21. The voting age was not lowered to 18 until the passage of the 26th Amendment to the United States Constitution in 1971.
Ellis Arnall, he was the 69th governor of Georgia and lowered the age from 21 to 18.
The election of 1968 was the last U.S. presidential election in which the minimum voting age was 21. On July 1, 1971, the 26th Amendment to the U.S. Constitution was ratified, lowering the minimum voting age to 18.