The Women's Marches may have been the largest demonstration in US history
By Sarah Frostenson Updated Jan 31, 2017, 11:11am EST

Crowd estimates from Women’s Marches on Saturday now tally over 4 million and political scientists think we may have just witnessed the largest day of demonstrations in American history.

According to data collected by Erica Chenoweth at the University of Denver and Jeremy Pressman at the University of Connecticut, marches held in more than 600 US cities were attended by at least 4.2 million people.

“Even using a conservative estimate, it was the single largest day for a demonstration in the US,” Chenoweth, an expert on political protests and civil resistance, told us.

Every state in America hosted a Women’s March, as you can see in the map above. The events ranged from tiny gatherings in small town squares to throngs of more than 500,000 people clogging streets in cities like Washington, DC, and Los Angeles.

More: https://www.vox.com/2017/1/22/14350808/womens-marches-largest-demonstration-us-history-map