In 1987 American Airlines saved $40,000 by eliminating one olive from its First Class salads.
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High Heels were originally made for men in the 16th century.
78
The exact cause of death and burial site of Genghis Khan is unknown, because all of the 2000 funeral guests and 800 soldiers were killed in order to preserve the secret.
16
The Titanic was the first ship to use the SOS signal.
149
Leonardo Da Vinci predicted the mass use of solar energy as long ago as 1447.
153
The handbook issued to US soldiers in Britain during WW2 included the line "The British don't know how to make a good cup of coffee. You don't know how to make a good cup of tea. It's an even swap."
23
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