The 9 biggest marches and protests in American history

On January 21, approximately 200,000 people will convene in Washington, DC to stand up for gender equality after Donald Trump's inauguration. The effort will extend internationally with sister marches in 60 countries on every continent - including Antarctica.

"In the spirit of democracy and honoring the champions of human rights, dignity, and justice who have come before us, we join in diversity to show our presence in numbers too great to ignore," the march's site reads. "The Women's March on Washington will send a bold message to our new government on their first day in office, and to the world that women's rights are human rights. We stand together, recognizing that defending the most marginalized among us is defending all of us."

It's set to be one of the largest protests in the last decade.

Here's a look back at some of the biggest marches in American history.