The Great Chicago Fire?

Travel Info
I found these websites:
http://www.chipublib.org/004chicago......
http://en.wikipedia.org/wiki/the_gr......
http://www.havemilk.com/article.asp......

I'm confused. What really happened? Was it the cow, the gambler, the meteor, or the thief?

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Late last night, when we were all in bed, Mrs. O' Leary hung the lantern in the shed. The cow kicked it over, she winked her eye and said: "It'll be a hot time in the old town tonight."

Others
The cow did it. The O'Leary Cow.
Colonel Mustard, in the study, with the candlestick.
The cow tipped over the lantern in the barn and started the hay on fire.
Never turn your back on a cow, sure, they may look niave and innocent............actually they say it was akin to scapegoating the Irish immigrants the same as Nero blamed the Christians. The very real cause of a lot of fires was a big insurance policy, or just plain stupidity/carelessness. That said a girl I went to school with kicked over a lantern in her grandpa's haymow, and burnt the barn, so it could have happened that way.
I don't think anybody really knows for sure. The cow, two guys sleeping in a barn, whatever... The cow story stuck around so long because it's weird enough to make a good legend. if it was just some guy smoking and tossing a match, it would be a boring legend. But they held a "trial" here in Chicago a few years ago using real lawyers and judges and aquitted the cow of any wrongdoing...
It wasn't any of them..it was the man with no arms and a peg-leg.