An impromptu umbrella protest was held in Albert Square on Wednesday afternoon against Boris Johnson's plan to suspend Parliament.
Around 200 people gathered outside the town hall at 4pm after a call-out from 26-year-old Emma Atherton just hours earlier on Twitter.
It came after news the Queen from mid-September until October 14.
MPs will be left with little over two weeks to block a no-deal Brexit before the October 31 deadline.
Inspired by the Hong Kong umbrella protest, Emma, from Burnage , decided to rally people together for the Stop The Coup protest.
Just after 12pm, she tweeted: "OK, so we're heading to Manchester Town Hall at 4pm today to protest the proposal to shut down Parliament.
"We will take umbrellas like the pro democracy campaigners in Hong Kong. Please join us. Please share this message."
And Emma said she was 'overjoyed' when hundreds of people turned up at such late notice.
Speaking to the Manchester Evening News , the legal professional said: "This protest isn't about Brexit, it's about democracy.
"We are standing not half a mile from St Peter's Fields (where the Peterloo Massacre took place). Eighteen people were massacred in a protest to ask for the right to vote.
"Boris Johnson is attempting to usurp these people, our parliament, our constitution. He has no right to do so.
"He has no mandate to be in power. He's tried to do a coup. We are not letting him do it without a fight.
"I'm overjoyed, and not surprised this many people are angry.
"People were saying (the protest) should be in every town.
"The mood (at the protest) was agitated, there was a slight touch of despair. And there was hope, because so many people came."
A petition against the move to prorogue parliament has amassed nearly 700,000 signatures in just a few hours.
Announcing his plan to suspend parliament, Mr Johnson said: "It is only by showing unity and resolve that we stand a chance of securing a new deal that can be passed by Parliament".
