Concepts

Uniformitarianism

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Citation Formats

General Reference

Earth and Environment Atlas. "Uniformitarianism." Accessed August 29, 2026. https://dev-earth.interactiveatlas.org/concepts/uniformitarianism.

APA Style

Earth and Environment Atlas. (n.d.). Uniformitarianism. Retrieved August 29, 2026, from https://dev-earth.interactiveatlas.org/concepts/uniformitarianism

BibTeX

@misc{earthandenvironmentatlas-uniformitarianism,
  author = {Earth and Environment Atlas},
  title = {Uniformitarianism},
  year = {2026},
  url = {https://dev-earth.interactiveatlas.org/concepts/uniformitarianism},
  note = {Accessed August 29, 2026}
}

The assumption that the same natural laws and processes that operate in the present have always operated in the past and apply everywhere in the universe. James Hutton proposed it in 1785, and Charles Lyell's Principles of Geology carried it to a wide readership from 1830, replacing catastrophist explanations of Earth's history with the patient accumulation of ordinary processes over deep time. It is the working assumption underneath most of modern geology.

Facts

Origin Year

1785 1

James Hutton proposed the concept in his 1785 Theory of the Earth; Charles Lyell popularized it from 1830.

Cross-Tradition Connections

Critiqued Here

Catastrophism

Catastrophism contrasts with uniformitarianism; since their 19th century disputes the consensus accepts some catastrophic events as extreme examples of explicable natural processes.

Source Catastrophism (Wikipedia)