Complete biography of Abraham Lincoln, 16th US president who led the nation through Civil War and abolished slavery.

Life story of Nikola Tesla, Serbian-American inventor who revolutionized electricity with AC systems and wireless technology.

Complete biography of Benjamin Franklin, polymath who shaped America as scientist, inventor, diplomat and founding father.

Scottish inventor who revolutionized communication by patenting the first telephone in 1876 and dedicated his life to deaf education.

Complete biography of Thomas Edison, the prolific American inventor who created the light bulb, phonograph and over 1,000 patents.

Complete biography of Charles Darwin, English naturalist who revolutionized science with evolution theory and natural selection.

Life story of Archimedes of Syracuse, brilliant mathematician who discovered buoyancy laws and invented ingenious machines.

Learn about Euclid’s life, the ancient Greek mathematician who revolutionized geometry with his famous Elements treatise.

Complete biography of Pythagoras, the influential Greek mathematician and philosopher who founded Pythagoreanism.

Explore Karl Marx’s life from Trier to London, his revolutionary ideas on capitalism and lasting impact on modern society.

Complete biography of Albert Einstein, from his birth in Germany to his revolutionary theories that changed modern physics.

Complete biography of Isaac Newton, the brilliant physicist and mathematician who revolutionized science forever.