Then
The theory reorganised biology, geology and anthropology and sparked a century of debate with religion and science alike.
Timeline of Discovery · 17 / 30
Charles Darwin
1809 - 1882 · England
Charles Darwin proposed natural selection as the mechanism of evolution, linking all life on Earth into one branching family tree.
- Biology
- Industrial & Modern
Lived
1809 - 1882
Era
Industrial & Modern
Primary field
Biology
Signature idea
Theory of Evolution by Natural Selection
Their place in history
1809 - 1882
The question they asked
Why do species change over time, and how could they have become so superbly adapted?
The Contribution
What this scientist actually did — precisely and plainly.
In “On the Origin of Species” he argued that individuals vary, more offspring are produced than can survive, and those better fitted to their environment pass on their traits.
How the Work Advanced Knowledge
The tools, experiments and reasoning behind the discovery.
He gathered evidence for decades — fossils, breeding, geography and Galápagos species — and reasoned from observation to a mechanism any student can grasp.
Why It Mattered Then / Today
From their own moment in history to the world we live in now.
Today
Evolution is the organising principle of all biology — medicine, ecology, genetics and vaccine design all rely on it.
Important Works or Discoveries
Landmarks that carried the idea into the world.
- On the Origin of Species
- The Descent of Man
- The Voyage of the Beagle
It is not the strongest of the species that survives, but the most responsive to change.
Sources
Where this profile was verified.
Last reviewed: 2026-09-22
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