Answer:
geocentric system
The Ptolemaic system also called the geocentric system or geocentric model, mathematical model of the universe formulated by the Alexandrian astronomer and mathematician Ptolemy about 150 CE and recorded by him in his Almagest and Planetary Hypotheses. Ptolemy made contributions to astronomy, mathematics, geography, musical theory, and optics. He compiled a star catalog and the earliest surviving table of a trigonometric function and established mathematically that an object and its mirror image must make equal angles to a mirror.
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According to the mythology Ramayan happened first and then comes mahabharat.
There are some evidence that does suggest the happening of a great war about 3500 years ago which could be the origin of the epic of Mahabharat but no historical or archeological evidence is available for Ramayan.
The Belgian mechanic and inventor is credited with building the first working internal combustion engine in 1860 was, A) Jean Lenoir. It was a gas fired internal combustion engine and was the first engine to be produced multiple times.
