Question

In which year did age 21 became the legal drinking age in all u.s. states? 1933 1945 1970 1988

Answer 1

The legal drinking age of 21 in all U.S. states was established in 1988 with the passage of the National Minimum Drinking Age Act of 1984. Before 1988, the legal drinking age varied from state to state.

Step-by-step explanation:

The legal drinking age of 21 in all U.S. states was established in 1988 with the passage of the National Minimum Drinking Age Act of 1984. This law required states to raise their drinking age to 21 or risk losing a significant amount of federal highway funds. Before 1988, the legal drinking age varied from state to state.

Answer 2

It was 1988 when all states had followed it with Wyoming changing its state laws on July 1st 1988