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  He created a horse-drawn seed drill in 1700 that economically sowed the seeds in neat rows.
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  He was an inventor and a leading entrepreneur during the early Industrial Revolution.
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  Best known for two classic works; The Theory of Moral Sentiments, and An Inquiry into the Nature and Causes of the Wealth of Nations.
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  Improved on Thomas Newcomen's 1712 Newcomen steam engine with his Watt steam engine.
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  He designed the first textile mills in the US and later went into business for himself, developing a family business with his sons.
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  Best known for inventing the cotton gin.
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  Surgeon who introduced new principles of cleanliness which transformed surgical practice.
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  His most significant contribution was the development of the first high-pressure steam engine. He also built the first full-scale working railway steam locomotive.
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  Morse formed a partnership with fellow inventor Alfred Vail, who contributed funds and helped develop the system of dots and dashes for sending signals that would eventually become known as Morse code.
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  His most well-known work is the 1848 pamphlet The Communist Manifesto.
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  Inventor and engineer who developed the first process for manufacturing steel inexpensively.
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  First in a series of World's Fairs, exhibitions of culture and industry that became popular in the 19th century, and it was a much anticipated event.
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  He published a detailed explanation of his theory in his best known work, On the Origin of Species by Means of Natural Selection.
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  He came up with the food preparing process known as pasteurization. He also developed a vaccination for anthrax and rabies.
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  Legend has it that Bell knocked over a container of transmitting fluid and shouted, “Mr. Watson, come here. I want you!” The more likely explanation was Bell heard a noise over the wire and called to Watson. In any case, Watson heard Bell’s voice through the wire and he received the first telephone call.
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  He created the electric light bulb and the phonograph.
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  He developed the surgical method of the chronic experiment with extensive use of fistulas, which enabled the functions of various organs to be observed continuously under relatively normal conditions.
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  Best known for their pioneering work in the study of radioactivity, which led to their discovery of the elements radium and polonium.
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  Inventor patented one of the first successful internal-combustion engines and later founded the Daimler company, which produced the first Mercedes car.
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  Established the Ford Motor Company and introduced the model T.
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  Kitty Hawk, North Carolina, the Wright Flyer became the first powered, heavier-than-air machine to achieve controlled, sustained flight with a pilot aboard.
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  Einstein completed his General Theory of Relativity, and brought to the world a fuller understanding of the interaction of space, time and gravity. He also came up with E=Mc2.