Did Mrs O Leary's cow really start the Chicago Fire?

Related questions

1. Are the Chicago Fire cast real firefighters?
2. Did a cow really started the Chicago Fire?
3. Did Mrs O Leary's cow die?
4. Is Dawson leaving Chicago Fire 2018?
5. What firehouse is used in Chicago Fire?
6. Is Gabby from Chicago Fire Leaving?
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Tags

1. #leary
2. #accused
3. #infamous
4. #great
5. #lantern
6. #chicago
7. #motive
8. #starting
9. #tribune
10. #kicking
11. #animal
12. #history
13. #claimed