
Long before modern cardiology, one British doctor transformed our understanding of how the heart works. His treatise overturned more than a thousand years of accepted medical doctrine.
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Rank these Grand National winning jockeys by the year they first won the race at Aintree.
β½ Sport Β· 25 votes
Which French engineer demonstrated the first practical mechanical television system in 1909 using a rotating mirror drum?
π» Tech Β· 25 votes
Which strange medieval English custom required a man to pay his lord a fine for permission to marry off his daughter?
π History Β· 25 votes
Which English physician first successfully tested a smallpox vaccine in 1796 using cowpox material?
π³ 28 votes