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276 BCE
Eratosthenes
Eratosthenes of Cyrene was a Greek polymath: a mathematician, geographer, poet, astronomer, and music theorist. He was a man of learning, becoming the chief librarian at the Library of Alexandria -
100
ptolemy
Claudius Ptolemy was born in about the year 100 AD, almost certainly in Egypt. He lived in the metropolis of Alexandria on Egypt's Mediterranean coast. Alexandria was built by the Ancient Greeks, but later conquered by the Romans. Claudius is a Roman name and Claudius Ptolemy was a Roman citizen. -
Feb 19, 1473
copernicus
Copernicus born. On February 19, 1473, Nicolaus Copernicus is born in Torun, a city in north-central Poland on the Vistula River. The father of modern astronomy, he was the first modern European scientist to propose that Earth and other planets revolve around the sun -
Jan 22, 1516
Bacon
Francis Bacon, 1st Viscount St Alban, PC QC was an English philosopher and statesman who served as Attorney General and as Lord Chancellor of England. His works are credited with developing the scientific method and remained influential through the scientific revolution. Bacon has been called the father of empiricism. -
Dec 14, 1546
Brahe
Tycho Brahe was a Danish nobleman, astronomer, and writer known for his accurate and comprehensive astronomical observations. He was born in the then Danish peninsula of Scania. Tycho was well known in his lifetime as an astronomer, astrologer, and alchemist. -
Feb 15, 1564
galileo
Galileo discovered four of Jupiter's moons almost four hundred years ago. Galileo Galilei was an Italian physicist and astronomer. He was born in Pisa on February 15, 1564. Later that same year, he became the first person to look at the Moon through a telescope and make his first astronomy discovery. he died January 8, 1642 -
Dec 27, 1571
kepler
Johannes Kepler was a German astronomer, mathematician, and astrologer. He is a key figure in the 17th-century scientific revolution, best known for his laws of planetary motion, and his books Astronomia nova, Harmonices Mundi, and Epitome Astronomiae Copernicanae -
Descartes
René Descartes was a French philosopher, mathematician, and scientist. A native of the Kingdom of France, he spent about 20 years of his life in the Dutch Republic after serving for a while in the Dutch States Army of Maurice of Nassau, Prince of Orange and the Stadtholder of the United Provinces. -
Locke
John Locke FRS was an English philosopher and physician, widely regarded as one of the most influential of Enlightenment thinkers and commonly known as the "Father of Liberalism" -
isaac newton
born on January 4, 1643, in Woolsthorpe, Lincolnshire, England. When the Great Plague shuttered Cambridge in 1665, Newton returned home and began formulating his theories on calculus, light and color, his farm the setting for the supposed falling apple that inspired his work on gravity -
hess
Moses Hess was a French-Jewish philosopher and a founder of Labor Zionism. His socialist theories, predicated on racial struggle, led to conflict with Karl Marx and Friedrich Engels. As a devoted Spinozist, Hess was profoundly influenced by Spinoza's life and philosophy. -
mendeleev
Dmitri Mendeleyev was born in Tobolsk, Russia, on February 8, 1834. Mendeleev is best known for his discovery of the periodic law, which he introduced in 1869, and for his formulation of the periodic table of elements. He died in St. Petersburg, Russia, on February 2, 1907 -
curie
Marie Curie Biography. Marie Curie was the first woman to win a Nobel Prize, in Physics, and with her later win, in Chemistry, she became the first person to claim Nobel honors twice. Her efforts with her husband Pierre led to the discovery of polonium and radium, and she championed the development of X-rays. -
Leavitt
Henrietta Swan Leavitt, (born July 4, 1868, Lancaster, Massachusetts, U.S She died December 12, 1921, Cambridge, Massachusetts), American astronomer known for her discovery of the relationship between period and luminosity in Cepheid variables, pulsating stars that vary regularly in brightness in periods ranging -
hubble
edwin Hubble, in full Edwin Powell Hubble, born November 20, 1889, Marshfield, Missouri, U.S. He died September 28, 1953, San Marino, California), American astronomer who played a crucial role in establishing the field of extragalactic astronomy and is generally regarded as the leading observational cosmologist -
wegner
During his lifetime he was primarily known for his achievements in meteorology and as a pioneer of polar research, but today he is most remembered as the originator of the theory of continental drift by hypothesizing in 1912 that the continents are slowly drifting around the Earth. His hypothesis was controversial and not widely accepted until the 1950s, when numerous discoveries such as palaeomagnetism provided strong support for continental drift, and thereby a substantial basic stuff -
Hominids appear -> present day
fossils that appear to be early homo sapiens
