When Was Evolution Theory Proposed?


Diego Sanchez

The theory of evolution is a widely accepted explanation of how species change over time. It has been supported by scientific evidence and has become an integral part of modern biology.

But when was the theory first proposed Who were the scientists behind it In this article, we’ll take a closer look at the history of the theory of evolution.

The Early Ideas

Beliefs about evolution have been around for centuries, but it wasn’t until the 18th century that scientists began to develop a more formal understanding of how it works. The French naturalist Jean-Baptiste Lamarck proposed one of the earliest theories in 1809.

Lamarck believed that species could change over time through use and disuse of their body parts. For example, he thought that giraffes developed long necks over generations because they stretched to reach high branches, and then passed on this trait to their offspring.

Charles Darwin

Charles Darwin is perhaps the most famous name associated with the theory of evolution. In 1859, he published his book “On the Origin of Species”, which laid out his ideas about how species evolve through natural selection.

Darwin’s theory was based on observations he made during a five-year voyage aboard HMS Beagle, where he studied plants and animals in South America and other parts of the world. He noticed that similar species existed in different locations but had adapted to their environments in different ways.

Darwin’s theory caused controversy at the time because it challenged traditional religious beliefs about how life on Earth had originated. However, over time it became widely accepted as scientific evidence supported his ideas.

Modern Developments

The theory of evolution has continued to develop since Darwin’s time. In the early 20th century, scientists began to understand how genetic mutations and inheritance play a role in evolution. In the mid-20th century, the discovery of DNA provided even more evidence for the theory of evolution.

Today, evolution is understood as a complex process that occurs over millions of years. It involves both small changes within species and larger changes that result in the creation of new species. The theory of evolution has become a cornerstone of modern biology and continues to be studied and refined by scientists around the world.


The theory of evolution has a long and complex history that spans centuries. It was first proposed by Lamarck in the 18th century, but it was Darwin’s work in the 19th century that really solidified its place in science.

Since then, scientists have continued to refine our understanding of how species change over time through natural selection and other mechanisms. Today, evolution is widely accepted as one of the most important theories in biology.