Just over 10 weeks after the idea was first proposed in a Facebook post, tens of thousands of protesters are heading to the nation's capital for the Women's March on Washington on Saturday.
Similar marches are planned in more than 600 other cities and towns around the world. But the largest is expected to take place in Washington, D.C., less than 24 hours into the presidency of Donald Trump.
Organizers are expecting around 200,000 marchers to gather on the National Mall. To accommodate the throng of visitors, Washington's Metro subway system will add trains and open two hours early — at 5 a.m. — on Saturday.
A four-hour rally is expected to kick off the march near the National Museum of the American Indian. It will feature speeches by Angela Davis, Gloria Steinem and the mothers of Trayvon Martin and Eric Garner, as well as musical performances by artists including Janelle Monáe, Maxwell and the Indigo Girls.