Globe reporters followed the protests, providing live updates from the streets of Toronto. Using their updates, we've reconstructed a timeline of how the protests escalated:
12:47 p.m. - The March (blue line on map below )
12:47 p.m. - Ann Hui: Queen's Park south lawn filled with protesters now.
1:25 p.m. - Adrian Morrow: Protest is so huge, it is taking nearly half an hour to get everyone formed up.
1:46 p.m. - Ann Hui: Police have crowd blocked off at University and Elm now.
1:53 p.m. - Ann Hui: About 50 riot cops lined up at Richmond Street, ensuring crowds turn at Queen Street
2:12 p.m. - Queen Street Confrontation (green line on map below )
2:12 p.m. - Matt Frehner: Riot police line up two rows deep on Richmond near MuchMusic.
2:16 p.m. - Matt Frehner: Police at Spadina get set to steer the protest back north. Will it work?
2:21 p.m. - Kate Allen: Riot cop on horseback: "Orders are if anyone breaches the line we take them down, period."
2:38 p.m. - Ann Hui: Group in black hoodies and handkerchiefs over faces at Queen and Spadina. Some holding wooden sticks.
3:26 p.m. - Push East on Queen (red line on map below )
3:26 p.m. - Anna Mehler Paperny: People in black, several of them masked, are smashing windows on Queen - Starbucks and Scotiabank. Some have hammers.
3:36 p.m. - Ann Hui: CBC van had bricks thrown at it, broken windows. TTC streetcars abandoned at York and Queen. Protesters still marching, but not chanting.
3:37 p.m. - Adrian Morrow: Protesters marching east on Queen. Two streetcar sprayed with anti-summit graffiti and anarchy symbols. Ads ripped down.
3:46 p.m. - Bay Street burning (purple line on map below )
3:46 p.m. - Adrian Morrow: Police have retreated from King and Bay. Protesters smashing cop cars and One Canadian Place.
3:49 p.m. - Ann Hui: Police car completely on fire now, thick black smoking up. People shouting that it's going to explode.
3:53 p.m. - Ann Hui: Everyone running back north on Yonge now. Fear that car could explode. March up Yonge now.
3:55 p.m. - Vandalism up Yonge Street (olive line on map below )
3:55 p.m. - Katie Hewitt: Security get word and locked down Eaton Centre. Say it's not safe inside or outside - "Protesters are breaking everything."
4:10 p.m. - Adrian Morrow: Now the Adidas store at Yonge and Dundas is smashed.
4:14 p.m. - Adrian Morrow: About three thousand protesters marching north on Yonge. Black bloc of young people in the lead.
4:16 p.m. - Adrian Morrow: American Apparel and Foot Locker got the worst of it. One guy even took out a mannequin and hoisted it like a trophy.
4:40 p.m. - Back to Queen's Park (burgundy line on map below )
4:40 p.m. - Ann Hui: Reaching Queen's Park Circle now, and a black Chrysler van is getting smashed. "It's a cop car," someone said.
4:52 p.m. - Kate Allen: Cops coming east on College, north on University, boxing in violent protesters at Queen's Park
5:51 p.m. - Ann Hui: Crowd starting to thin out. Riot police look on.
6:47 p.m. - Ann Hui: Probably about 500 protesters still milling around at south lawn of Queen's Park, waiting to see what's going to happen. Riot police still here.
7:33 p.m. - Adrian Morrow: Police in riot gear closing in. Pushing protesters back. Horses charging.