Researchers estimate the crowds at the Women's March on Washington were roughly three times larger than at Trump's Presidential Inauguration.

Marcel Altenburg and Keith Still, crowd scientists at Manchester Metropolitan University in Britain, have been able to analyze photos from the march and estimated that at least 470,000 people were at the women’s march in Washington in the areas on and near the mall at about 2 p.m.

This is in comparison to the 160,000 people in those areas in the hour leading up to the inauguration speech on Friday.

DC Cam captures crowd comparison of inauguration and https://t.co/YwXfPDdGzF pic.twitter.com/yobcmzDL2p

— The Hill (@thehill)

Trump expressed his skepticism about these numbers in a visit to the Central Intelligence Agency on Saturday.

He falsely accused the media of lying about crowd numbers at his inauguration, saying that “it looked like a million, a million and a half people."

Other cities across the U.S. reported high numbers as well. The New York City Mayor's office an estimated 400,000 people gathered in Midtown Manhattan on Saturday.

Los Angeles reported 750,000 marchers, Boston 175,000, and Chicago 250,000.

These numbers blew estimations out of the water and proved just how historic a moment this is. Museums across the world are recognizing it too.

You can meet our political history team here: https://t.co/DT4MMFDnK7 They’ve been collecting since before the 2016 caucuses.

— amhistorymuseum (@amhistorymuseum)

Curators are putting out calls on Twitter in order to collect signs from the march. There's no word yet on whether these will be included in future exhibits, but it's a major indicator of the historical significance of this weekend's event.

Marching this weekend? We're collecting as part of a living archive of modern protest! DM us for details. pic.twitter.com/xURxTsnz6d

— Newberry Library (@NewberryLibrary)