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276 BCE
Eratosthenes' Birth
Eratosthenes was born 276 BCE in Cyrene, Lyberia. -
195 BCE
Eratosthenes' Death
Eratosthenes died 195 BCE in Alexandria, Egypt. -
85
Ptolomy is born
Ptolomy was born 85 C.E. in Hermiou, Egypt. -
165
Ptolomy's death
Ptolomy died 165 C.E. in Alexandria, Egypt. -
Feb 19, 1473
Copernicus' Birth
Copernicus was born February 19, 1473. -
1492
Copernicus begins studying at the University of Krakow
Copernicus studied at the University of Krakow from 1492 to 1496. -
1496
Copernicus moves to Italy
Copernicus traveled two months to reach Italy, where he studied law at the University of Bologna, and studied medicine at the University of Padua. There he began to question the teachings. -
1503
Copernicus moves back to Warmia
Returning to Warmia, Copernicus spent his free time observing the sky and crafting theories. -
1510
Copernicus becomes a canon
Copernicus was elected as a canon of the cathedral in Frombork in 1497, and took this role in 1510. -
1532
Copernicus completes manuscript
He finished an astronomical manuscript detailing his discoveries and theories, though did not publish it yet due to fear of controversy. -
1541
Copernicus publishes manuscript
With the support of Georg Rheticus, a mathematician and professor, he was able to publish his work. -
May 24, 1543
Copernicus' Death
Copernicus died May 24, 1543. -
Feb 15, 1564
Galileo's Birth
Galileo was born February 15, 1564. -
Galileo invents a powerful telescope
Galileo invented a telescope far more powerful than other devices being used at the time. -
Galileo discovered Jupiter's moons
Galileo discovered the four largest moons orbiting Jupiter, disproving the theory that the Earth was the center of all orbits -
Galileo's Death
Galileo died January 9, 1642. -
Newton's Birth
Isaac Newton was born January 4, 1643 in Lincolnshire, England. -
Newton publishes his book
Newton published the Mathematical Principles of Natural Philosophy, exploring the laws of motion and calculus. -
Newton's Death
Isaac Newton died on March 31, 1727 in London. -
Mendeleev's Birth
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Marie Curie's Birth
Marie Curie was born November 7, 1867 in Warsaw, Poland. -
Mendeleev creates the periodic table
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Wegner's Birth
Alfred Wegner was born November 1, 1880 in Berlin, Germany. -
Marie Curie gets her physics degree
In 1893, Marie passed an exam with the highest marks in her class and earned a physics degree -
X-radiation was discovered
Wilhelm Roentgen, a German scientist, discovered x-rays, which heavily aided Marie's work. -
Marie marries Pierre Curie
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Marie's daughter, Irène, is born
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Marie discovered Polonium and Radium
In researching elements, she discovered two highly radioactive elements, polonium and radium. -
Marie managed to isolate radium
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Marie received a doctorate degree in physics
She received a doctorate degree in physics in 1903, the first woman in France to do so. -
Marie wins the Nobel Prize
Marie became the first woman to earn a Nobel Prize -
Mendeleev receives the Copley Medal
The Royal Society of England grants Mendeleev the Copley Medal -
Hess' Birth
Harry Hammond Hess was born May 24, 1906 in New York, New York. -
Mendeleev's Death
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Wegner's Death
Alfred Wegner died November 1930 in Clarinetania, Greenland. -
Marie Curie's Death
Marie Curie died July 4, 1934 in Savoy, France. -
Hess' Death
Harry Hammond Hess died August 25, 1969 in Woods Hole, Massachusetts