Were the No Kings protests the largest single-day demonstration in American history?

Depending on who you ask, between four and six million people showed up - and according to one theory, this could be a turning point

The scale of last weekend's No Kings" protests is now becoming clearer, with one estimate suggesting that Saturday was among the biggest ever single-day protests in US history.

Working out exactly where the protest ranks compared to similar recent events has been a project of G Elliott Morris, a data journalist who runs the Substack Strength in Numbers, calculated turnout between four million and six million, which would be 1.2-1.8% of the US population. This could exceed the previous record in recent history, when between 3.3 million and 5.6 million people showed up at the 2017 Women's March to rally against Trump's misogynistic rhetoric.