- 2004 The final episode of "Frasier" on NBC is watched by 33 million people
- 1950 First ever race of the Formula 1 World Drivers Championship is run at Silverstone, England and won by Giuseppe Farina of italy in an Alfa Romeo
Cardinal Richelieu of France reputedly creates the table knife
On May 13, 1637
22 year old UK blogger halts spread of global ransomware cyber-attack by accidentally identifying "kill switch"
On May 13, 2017