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9999 BCE
Big Bang
the rapid expansion of matter from a state of extremely high density and temperature that according to current cosmological theories marked the origin of the universe. - ignore date it happened 13.7 billion years ago -
9997 BCE
Stars Light Up
dense regions within molecular clouds in interstellar space, sometimes referred to as "stellar nurseries" or "star-forming regions", collapse and form stars. -happened 2 million years after Big Bang or about 13.5 million years ago -
6000 BCE
Hominids Appear
Remnants of the oldest fossil of a hominid are referred to as Ardipithecus Kadabba from about 6 million years ago. Not all the pieces were found, but these bones are considered to be the first appearance of hominids. - ignore the date, this appeared about 5.7-6 million years ago -
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 a famous Greek mathematician, astronomer, geographer, and astrologer. He made various famous theories about the Universe and how it worked, was organized, etc.. Although they have been disproved, they were generally known as facts for a long time and his discoveries with a lack of resources are admired. -
Feb 19, 1473
Copernicus
Nicholas Copernicus is a Renaissance-era mathematician and astronomer that discovered that the Sun is at the center of the Universe rather than the Earth. -
Dec 14, 1546
Tyco Brahe
a Danish nobleman, astronomer, and writer known for his accurate and comprehensive astronomical observations. He was also known as an astronomer, astrologer, and alchemist. -
Jan 22, 1561
Sir Francis Bacon
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. -
Feb 15, 1564
Galileo
Galileo Galilei was an Italian astronomer, physicist, and engineer who although did not discover the heliocentric view but heard about it from Copernicus' work and further proved and supported it and was arrested for spreading information that went against the Church. Galileo has been called the "father of observational astronomy", the "father of modern physics", the "father of the scientific method", and the "father of modern science". -
Dec 27, 1571
Johannes Kepler
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 -
Rene Descartes
a French philosopher, mathematician, and scientist. He was known for Cartesian Skepticism and his quote "I think therefore I am" -
John Locke
an English philosopher and physician, widely regarded as one of the most influential of Enlightenment thinkers and commonly known as the "Father of Liberalism". -
Newton
Sir Isaac Newton was an English mathematician, physicist, astronomer, thelogian, and author who is known as the father of physics and is recognized as the most influential scientist of all time. He also was a key figure in the scientific revolution. -
Mendeleev
Dmitri Mendeleev was a Russian chemist and inventor. He is famous because he created the idea of the periodic table of elements which was a very significant event and paved the path for many chemists in the years to come. -
Curie
Marie Curie was a famous physcist and chemist. She discovereed two new elements and she played a key role in radiactivity which led to her being the first woman to win a Nobel Prize, and the only person to have the prize in two different scientfic fields. -
Leavitt
Henrietta Leavitt was an American astronomer who is well known for her discovery of the relationship between period and luminosity in Cepheid variables, pulsating stars that vary in brightness based on their distance from us. This was vital in measuring distance in the Universe and is seen as highly influential. -
Alfred Wegener
a German polar researcher, geophysicist, and meteorologist. He is known for creating the theory of continental drift. -
Hubble
Edwin Hubble was an American astronomer that played a vital part in establishing the fields of extragalactic astronomy and observational cosmology and is regarded as one of the most important astronomers of all time. One notable thing about him is the famous modern Hubble telescope used by NASA and is one of the largest and most versatile telescopes. -
Harry Hess
a geologist and a United States Navy officer in World War II. Considered one of the "founding fathers" of the unifying theory of plate tectonics.