Guam and the 19th Amendment

Island of Guam, shaded gray
Guam, shaded gray showing it was not one of the original 36 states to ratify the 19th Amendment. CC0

Women fought for the right to vote since the mid-1800s. They marched, protested, lobbied, and even went to jail. By the 1870s, women pressured Congress to vote on an amendment that would give them suffrage rights. This amendment became known as the 19th Amendment.

After decades of arguments for and against women's suffrage, Congress finally voted in favor of the 19th Amendment in 1919. This is called ratification. After Congress ratified the 19th Amendment, at least 36 states needed to vote in favor of it for it to become law.

Flag of Guam
Flag of Guam. CC0
Guam became a US Territory in December of 1898. Because Guam is not a state, they could not vote to ratify (or not ratify) the 19th Amendment.