Many soldiers argued that if they were old enough to fight they were old enough to blank the blank gave 18 year olds the blank

Many soldiers argued that if they were old enough to fight they were old enough to vote. The 26th Amendment gave 18-year-olds the right to vote.

Explanation:

Hope that helps!

2018 means 2018 ce or common era

there have been other eras too including bce, which included way more years.

missouri compromise of 1820 which prohibited slavery