To understand the eligibility age for voting in 1989, we need to consider the historical context and the voting laws in place during that time.

Historical Context:
In the United States, the eligibility age for voting has not always been the same throughout history. The age at which individuals are allowed to vote has been a subject of debate and has changed over time.

Voting Laws in 1989:
In 1989, the eligibility age for voting in the United States was 18. This means that individuals who were 18 years old or older were able to cast their votes in elections. This age requirement was established by the 26th Amendment to the United States Constitution, which was ratified in 1971.

Explanation:
1. Historical Context:
- Before the 26th Amendment was ratified, the eligibility age for voting varied across states. Some states allowed individuals to vote at the age of 21, while others set the age at 18, 19, or 20.
- The movement to lower the voting age gained momentum during the 1960s when young people were actively involved in social and political movements, such as the Civil Rights Movement and the opposition to the Vietnam War.
- The argument was made that if young people were old enough to fight and die in wars, they should also have the right to vote.
- As a result, the 26th Amendment was proposed and ratified, setting the eligibility age for voting at 18 nationwide.

2. Voting Laws in 1989:
- By 1989, the eligibility age for voting had been 18 for almost two decades.
- This meant that individuals who were 18 years old or older were able to vote in both federal and state elections, including presidential, congressional, and local elections.
- The 26th Amendment applied to all citizens of the United States, regardless of race, gender, or other factors.

Conclusion:
In 1989, the eligibility age for voting in the United States was 18. This age requirement was established by the 26th Amendment to the United States Constitution, which was ratified in 1971. The amendment aimed to give young people the right to participate in the democratic process and recognize their contributions to society.