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Here's How The World's First Steam Engines Worked
This took quite some time: It was in 1698 that inventor Thomas Savery filed a patent for what may have been the first steam engine designed to be put to work. The machine's primary job was to ...
Important inventions by different countries: A gift to the world
The first invention in China in the seventh century was the paper currency. Paper currency is one of China’s most important inventions as paper currency has been adopted worldwide. Usage of paper ...