-
276 BCE
Eratosthenes is born
Made a map of the world and figured out the size of the Earth. -
194 BCE
Eratosthenes dies
-
165 BCE
Ptolemy died.
-
85 BCE
Claudius Ptolemy is born.
Devised the geocentric view. -
13 BCE
Stars Light Up
Gas clouds of hydrogen and helium ignited as stars. -
13 BCE
Big Bang
The Big Bang is used to explain the way the Universe began. -
Feb 19, 1473
Nicolaus Copernicus is born.
-
May 24, 1543
Copernicus dies.
-
Dec 14, 1546
Tycho Brahe was born
-
Jan 22, 1561
Bacon is born.
Credited for developing the scientific method. -
Feb 15, 1564
Galileo Galilei is born.
-
Dec 27, 1571
Johannes Kepler is born
Discovered the major laws of planetary motion. -
Rene Descartes is born
Cartesian skepticism named after him. He doubted everything. -
Tycho Brahe dies
-
Bacon dies.
-
Johannes Kepler dies
-
John Locke is born
He believed that the most reliable source of knowledge comes from one's senses. -
Isaac Newton is born.
Discovers the three laws of motion. -
Galileo Galilei dies.
-
Rene Descartes dies
-
John Locke dies
-
Isaac Newton dies.
-
Dmitri Mendeleev is born.
He devises the Periodic Table of Elements. -
Marie Curie is born.
She discovers the elements polonium and radium. -
Henrietta Leavitt is born.
Discovers relationship between period and luminosity in Cepheid variables. -
Alfred Wegener is born
He believed in pangea and how the continents were once one large landmass that seperated. -
Edwin Hubble is born.
Discovers the Universe is larger than once thought before. -
Hess is born
-
Dmitri Mendeleev dies.
-
Henrietta Leavitt dies.
-
Alfred Wegener dies
-
Marie Curie dies.
-
Edwin Hubble dies.
-
Hess dies