<human>:  Why did the United States government pass the 19th Amendment in 1920?
<bot>: The 19th Amendment was passed to give women the right to vote. It was passed by Congress in 1919, but ratified by three states in 1920. The 19th Amendment states: “The right of citizens of the United States to vote shall not be denied or abridged by the United States or by any State on account of sex.”