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Period: 190 BCE to 120 BCE
Hipparchus
Hipparchus was the creator and founder of Trigonometry. -
170 BCE
Claudias Ptolemy dies
The exact circumstances of Claudius Ptolemy's death are not well-documented, and it is believed he died in Alexandria, Egypt, around the year 170 AD. -
150 BCE
Claudius Ptolemy
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150 BCE
Hipparchus
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120 BCE
Hipparchus dies
Hipparchus died around 120 BC, but the exact circumstances of his death are not well-documented. -
Period: 100 BCE to 170 BCE
Claudius Ptolemy
Ptolemy created the Almagest. The Almagest was an astronomical treatise that supported the theory that the Earth is the center of the Universe. -
Period: Feb 19, 1473 to May 24, 1543
Copernicus
Copernicus created the theory that the Sun was the center rotation point for all the planets in the solar system. -
1500
Copernicus
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May 24, 1543
Copernicus dies
Nicolaus Copernicus died, likely from a stroke or possibly from other health issues related to old age. -
Period: Dec 14, 1546 to
Tycho Brahe
Brahe was a Danish astronomer who was known for his incredible accuracy when placing the positions of stars. -
1560
Tycho
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Period: Dec 27, 1571 to
Kepler
Johannes Kepler discovered the three major laws of planetary motion. -
Tycho Brahe dies
Tycho Brahe died from a combination of obesity, diabetes, and alcoholism, which led to a sudden illness that caused urinary retention and ultimately a fatal bladder rupture. -
Kepler
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Kepler dies
After contracting a fever, Johannes Kepler died on November 15, 1630, in Regensburg, in the Duchy of Bavaria, now in Germany. -
Period: to
Isaac Newton
Sir Isaac Newton discovered the three laws of motion. -
Isaac Newton
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Isaac Newton dies
Isaac Newton died in his sleep on March 31, 1727, at the age of 84. -
Period: to
Clyde Tombaugh
Clyde discovered the dwarf planet Pluto. -
Clyde Tombaugh
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Clyde Tombaugh dies
Clyde Tombaugh died of natural causes.