A couple that come to mind (of a similar vein):
The discovery of vaccination by Edward Jenner (and it's continued improvement and expansion), and the discovery of penicillin by Sir Alexander Fleming radically changed human life expectancy, and ushered in a new era for the general quality of health in society.
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Pylon on the Edmonton Oilers:
"I am actually more excited for the Oilers game tomorrow than the Flames game. I am praying for multiple jersey tosses. The Oilers are my new favourite team for all the wrong reasons. I hate them so much I love them."
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