History Explained

History of Science & Tech

Inventions and discoveries that changed history.

Science

How Penicillin Was Discovered and Developed

Alexander Fleming spotted a mold killing bacteria in 1928, but turning that accident into a usable antibiotic took over a decade of work by others.

5 min read
Science

How the Steam Engine Changed the World

Newcomen, Watt and later engineers turned heat into motion, powering mines, factories, ships and railways and changing how people and goods moved.

5 min read