Ancient Romans at one time used human urine as an ingredient in their toothpaste.
37
France’s King Louis XIV was offered biological weapons by an Italian chemist. He not only refused, but also paid the chemist an annual salary to never reveal the technology to anyone else.
21
During the 1600's, boys and girls in England wore dresses until they were about seven years old.
63
Leonardo Da Vinci predicted the mass use of solar energy as long ago as 1447.
153
In 1518, a "dancing plague" struck Strasbourg, Alsace, whereby hundreds of people danced fervently in the streets over the period of a month. Some suffered heart attacks or strokes, and many others died from sheer exhaustion. It remains unexplained.
19
The first Ford cars had Dodge engines.
58
The range of a medieval long-bow is 220 yards.
78
The native Americans planted three sisters (corn, beans, and squash) together so that they would benefit each other. The corn provides a structure for the beans to climb. The beans provide the nitrogen to the soil, and the squash spreads along the ground preventing weeds.
30