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Map project ties together centuries of Toronto history

Posted by Chris Bateman / February 19, 2014

toronto mapImagine standing at the corner of Queen and Bay and being able to fast-forward through time from 1818 right up to present day. Two city halls, polar opposites in terms of design, would appear before your eyes, the mighty Eaton's department store empire would proliferate and crumble, and rows of industrial buildings would give way to luxury hotels and bank buildings.

Chris Olsen, a professional cartographer based in Redlands, California, has made that dream a reality with a gorgeous interactive map application. Released earlier this month, the Google Maps-style interface lets users explore maps of Toronto that date back almost two centuries.

"It really gives you a window into the evolution of the city," says Nathan Ng, who supplied some of the image files used by Olsen. "If you look at the area around Old City Hall and zoom through the years you can see how The Ward changed, and by 1947 it's all different."

Olsen, who works for Esri, a geographic information systems software company based in Redlands, California, has made similar maps of Cleveland and Pittsburgh in his spare time and was challenged to do something for Toronto by Ng.

The result is a timeline of maps from 1818 to 1924 with aerial views from 1947 and 2012. The maps Olsen used for 1889, 1913, and 1924 were prepared for insurance underwriters and printed as 59 separate plates.

Zoom out far enough and the patchwork is visible due to minor variances in colour and tone.

toronto king simcoe"The most time consuming part is putting the maps together because you're starting with just the pure image itself," Olsen says. It took about to six months to stitch the pieces together, make the map searchable, and work out numerous tiny inaccuracies, he says.

"Everything that I've done is out-of-the-box, there's no customizing or smoke and mirrors or anything like that."

The attention to detail is remarkable: Each map has been rotated to true north, which puts Toronto's streets at their correct oblique angle, and synchronized with an address search function. It's possible to find a location and adjust the slider to see how the neighbourhood evolved.

Take King and Simcoe. In 1818 it's a rural crossroads on the outskirts of town. By 1889, the arrival of Upper Canada College, Government House, St. Andrew's Church, and the bawdy British Hotel tavern has resulted in corners being nicknamed "education," "legislation," "salvation," and "damnation."

Jump ahead to 1924 and the block is dominated by rail sidings and factories; leap ahead again and King and Simcoe is the heart of the theatre district, home to Roy Thomson Hall and Metro Centre.

Every point on the map has its own story to tell. Try it for yourself

Chris Bateman is a staff writer at blogTO. Follow him on Twitter at @chrisbateman.



Neat! / February 19, 2014 at 10:13 am
Very cool. It was pretty neat to see that where my condo building is now was basically a railyard. I could waste the rest of my day picking a nieghbourhood and watching it grow and change!
W. K. Lis / February 19, 2014 at 10:32 am
Its neat to see the Sunnyside, Queen, and High Park area evolve from little pond, to housing, to be replaced by The Queensway. Indian Road used to be THE road connecting with Lake Shore Blvd., then having a fork in the road with Keele Street, then the connection disappearing entirely.
Greg Hannah replying to a comment from Neat! / February 19, 2014 at 11:28 am
And before being rail yards, it was water - your living on top of landfill. South of Front Street was the harbour.
Neat! replying to a comment from Greg Hannah / February 19, 2014 at 11:44 am
Oh yes, that's right! I recall hearing somewhere that the ancient shoreline went all the way up to where Casa Loma is now, is that correct? (and by ancient, I mean, well,
the lemur replying to a comment from Neat! / February 19, 2014 at 04:29 pm
Yes, ancient as in 10,000+ years ago. Davenport Rd is based on a trail that ran along the shoreline, which is why it doesn't follow the street grid.
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