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In 320 BC Buddhism popularity begins to spread north. This caused many new people to convert to Buddhism.
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In 365 BC aristotle believed that there is no effect or motion without a cause. The cause of the downward motion of heavy bodies, such as the element earth, was related to their nature, which caused them to move downward toward the center of the universe.
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Leonardo da Vinci started painting the Mona Lisa which he finished 3 years later.
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Copernicus's most significant achievement was his combination of mathematics and physics, adapting physics to conform to his view of astronomical truth, with a good bit of cosmology thrown in for good measure.
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A graphite pencil was invented by Conrad Gesner.
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Galileo Galilei invents a water thermometer.
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He set about calculating the entire orbit of Mars, using the geometrical rate law and assuming an egg-shaped ovoid orbit. After approximately 40 failed attempts, in early 1605 he at last hit upon the idea of an ellipse, which he had previously assumed to be too simple a solution for earlier astronomers to have overlooked.
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Hans Lippershey invents the first refracting telescope..
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Galileo was one of the first modern thinkers to clearly state that the laws of nature are mathematical.
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Giovanni Branca invents a steam turbine.
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Anton Van Leeuwenhoek was the first to see and describe bacteria with a microscope.
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Christian Huygens invents the pocket watch.
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Newton worked out a proof that the elliptical form of planetary orbits would result from a centripetal force inversely proportional to the square of the radius vector.
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Gabriel Fahrenheit invents the first mercury thermometer.
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Gottlieb Daimler builds the world's first four-wheeled motor vehicle.
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It was part of his famous General Theory of Relativity, and it offered a very different explanation from Newton's Law of Universal Gravitation. Einstein didn't believe gravity was a force at all; he said it was a distortion in the shape of space-time, otherwise known as "the fourth dimension"
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In 369 BC the Athenian mathematician Theatetus dies at age 48. He helped to revolutionize Greek mathematics with his contributions to the theory of irrational quantities. The inventor of solid geometry, he has also contributed to the construction of the regular solids.
