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The war for freedom and independence of America
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The founding fathers have signed a declaration of war with England -
It was developed by Christian Frederick Martin, a German-born American luthier who made his first guitar in the United States in the 1830s. -
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The war between north and south of America for slavery.
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George Brayton invented the first commercial liquid-fueled internal combustion engine. -
People mixed sugar and water to get soda -
The Model T was introduced to the world in 1908. -
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The first self-service grocery store, Piggly Wiggly, was opened in 1916 in Memphis, Tennessee, by Clarence Saunders, an inventor and entrepreneur. -
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Henry Ford popularized the 40-hour work week after he discovered through his research that working more yielded only a small increase in productivity that lasted a short period of time. -
Rocket was created and was launched -
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