Here’s our alphabetical list of the most popular scientists from ancient times on the Famous Scientists website.
An ancient scientific revolution: the first person in history to recognize that we live on a planet that is free in space and does not need to sit on something.
Founded the sciences of mechanics and hydrostatics, calculated pi precisely, devised the law of exponents, created new geometrical proofs, invented numerous ingenious mechanical devices, and more.
Promoted the idea that the earth follows a circular orbit around the sun eighteen centuries before Nicolaus Copernicus resurrected the idea.
A genius whose philosophical ideas are still taught, but his contributions to science retarded progress for almost two millennia.
Established zero as a number and defined its mathematical properties; discovered the formula for solving quadratic equations.
An ancient theory of natural selection; mass conservation; and the four elements which are now often misattributed to Aristotle.
Accurately calculated Earth’s size 2,500 years ago; founded the science of geography; and devised the famous prime number sieve.
Began his practice as a physician to gladiators and established a link between diet and health. Galen created a flawed doctrine that dominated Western and Arab medicine for 1,500 years.
One of antiquity’s greatest scientists: founded the mathematical discipline of trigonometry; measured the earth-moon distance accurately; discovered the precession of the equinoxes; and documented the positions and magnitudes of over 850 stars. His combinatorics work was unequalled until 1870.
The father of Western medicine: systematized medical treatments, disentangling them from religion and superstitions; trained physicians; produced a large body of medical textbooks. The famous Hippocratic Oath binds physicians to good ethical practices.
Produced the world’s first encyclopedia in 37 volumes and over a million words.
Author of the Almagest, which contained a catalogue of over a thousand stars with positions, relative brightnesses, and constellations; and a mathematical model predicting the movements of the planets that was unsurpassed for almost 1,500 years.
Believed the universe was constructed using mathematics and everything could be described with numbers; established a link between mathematics and music; proved Pythagoras’s theorem; discovered irrational numbers; discovered the Platonic Solids.
The first scientist in history, Thales looked for patterns in nature to explain the way the world works. He replaced superstitions with science. He was the first person to use deductive logic to find new results in geometry.