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Feb 9, 1473
Nicholas copernicus was born in 1473
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Oct 11, 1541
Publicised his manuscript
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May 24, 1543
Death
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Feb 15, 1564
Galileo Galilei was born in Pisa, Italy
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Galileo invented a powerful telescope
He invented a powerful telescope -
Galileo published his letters about sunspots based on observations he made
Based on his observations of the dark spots on the sun that were caused by intense magnetic activites. -
Galileo published his book
Discourses and Mathematical Demonstrations, which compares Copernicus's work and Ptolemaic -
Galileo dies in Florence, Italy
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Published a book about mathematical principles of natural philosophy
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Edwin Hubble was born
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Hubble's law
Hubble's law was identified and show that the universe is expanding and that there are more galaxies in the universe -
Death of Edwin Hubble