
On Monday 10th April 1848 the Chartists held a meeting on Kennington Common to demand the vote (for working men). They aimed to take a petition signed by several hundred thousand people to the Commons.
How big the meeting was historians are still debating. Suffice to say in the modern idiom it was bigly.
An interesting point is how people were mobilised for the day. The Chartists had well organised London branches and a weekly mass circulation paper, the Northern Star. They did not have The Interwebs, TV, radio, e-mail, social media etc.
The meeting was built by word of mouth but also by extensive flyposting (the poster is above).
The Government declared the whole thing illegal (though the meeting went ahead) but it had the same issue. It issued a proclamation telling people to stay away and got it officially flyposted.
There was a brief House of Commons debate on Thursday 6th April 1848. Grey, the Home Secretary stated:
a notice to be issued, which, I trust, will be published in half an hour throughout the streets of London, and circulated over the country, pointing out that by the statute and common law of these realms this intended procession is illegal, and warning all loyal and peaceable subjects of Her Majesty to abstain from taking part in such procession, and calling upon them to give their best assistance to the constituted authorities in maintaining order, preventing disturbance, and preserving peace.
https://api.parliament.uk/historic-hansard/commons/1848/apr/06/proposed-chartist-meeting











