My top 10 is the wheel, agriculture, animal husbandry, gunpowder, the printing press, steel, electomagnet, anti biotics, transistor, and birth control.
I want to take this opportunity to say, contrary to popular believe, Edison did not invent the lightbulb. He did however perfect it and succeeded in marketing lighting solutions to the masses. Also, I have trouble calling Edison an inventor. I consider him to be more of a shrewd business man who excelled at hiring brilliant engineers and filing patents.
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The masses of humanity have always had to surf.
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