How were women granted the right to vote in united states

Explanation:

Starting around the 1800s, women started organizing and petitioning to win the right to vote, but it took them decades to accomplish their purpose.

The amendment was  introduced in Congress in 1878, especially because a few years ago the fifteenth amendment took place to give african american men the right to vote.

After a lengthy and difficult struggle, agitation and protest, by the beginning of the mid-19th century, several generations of woman suffrage supporters lectured, wrote, marched and practiced civil disobedience to achieve a resolution. By 1920 finally, the 19th Amendment was introduced to the U.S. Constitution, giving women's  the right to vote.

answer: the time zones used to be whatever the local authority wanted them to be. one town might have 6am whenever the sun came up and another town had 6am 10 minutes later.  

the trains had a hard time when their orders said to be at a certain point at 6am.  

6am, but who's 6am.  

the railroads got together and set the time zones more or less along the longitude lines across the country.

explanation: