A single lightning bolt has enough energy to toast 100,000 slices of bread.
Tennis was originally played with bare hands.
The Guinness brewery supported all of it's employees who chose to fight in WW1. They were paid half of their wages while away, and their jobs were guaranteed upon their return. The brewery also sent them care packages containing chocolate and condensed milk.
T-shirts were originally made for unmarried men who didn't know how to sew buttons on collared shirts.