The timeline of life represents the current scientific theory outlining the major events during the development of life on Earth. Dates in this article are consensus estimates based on scientific …

During the period of human evolution, the Earth's climate has fluctuated between warm and cold. Some of the most important milestones in human evolution occurred during times of greatest fluctuations.

Jan 25, 2026 · See the article evolution for a full explanation of evolutionary theory, including its main proponents both before and after Darwin, its arousal of both resistance and acceptance in society, …

Below is a detailed chronological timeline highlighting the major milestones in the evolution of life on Earth – from the first signs of life in ancient oceans to projected future events like synthetic …

It begins with the formation of the Earth from the dust and gas of the solar nebula, includes the origin and early evolution of life, the beginning of plate tectonics, and the development of an oxygen …

Aug 6, 2025 · In this article, we will walk step by step through the incredible timeline of human evolution—from the first simple life forms to the emergence of modern humans.

This timeline of the evolution of life outlines the major events in the development of life on the planet Earth. For a thorough explanatory context, see the history of Earth, and geologic time scale.

Apr 4, 2023 · This timeline of the evolution of life outlines the major events in the development of life on the planet Earth. Dates given are estimates based on scientific evidence.

This is a large wall display that features a timeline of human evolution from seven million years ago to present in three horizontal sections—Changing Ancestral Species, Biological and Technological …

Important events in human history, with approximate dates, which reflect the evidence currently available. Image use policy: For non-commercial, educational purposes, this image may be used with …