History of the Earth
Welcome to the History of Earth page, where we take you on a unique journey to explore the greatest events that have shaped our planet since its formation 4.6 billion years ago until today. On this page, you will find a chronological timeline of all geological eons, eras, and periods, starting from the formation of Earth and its primordial atmosphere, through the ice ages, to the current environmental and geological changes. The information is presented with accuracy and reliability by experts and scientists in Earth sciences, making it your comprehensive gateway to everything related to Earth’s history in one place. Sections will gradually appear as articles are added, providing you with a rich and integrated experience to understand the fascinating evolution of our planet.
The geological time scale is divided into several units, and these units will form the basis of how we organize the sections of Earth’s history:
- Eon
- Era
- Period
- Epoch
- Subepoch
- Age
- Subage
Hadean Eon
Discover the secrets of the Hadean Eon, the first chapter in Earth’s history when the planet was a molten sphere of fiery rocks and magma. During this mysterious era, Earth’s primitive crust began to form amidst destructive meteor storms and relentless volcanic activity. Explore the earliest moments of our planet’s birth and uncover how the foundations of Earth as we know it emerged from the depths of this hellish phase!
Timeframe: Approximately 4.6 billion years ago to 4 billion years ago.
Archean Eon
Dive into the depths of time and discover the Archean Eon, the era when life first emerged on Earth! Amidst violent volcanic activity and the formation of primordial oceans, the first microorganisms began their incredible journey. How did these organisms survive in such a harsh environment? And how did they contribute to shaping the atmosphere we breathe today? Join us in exploring the secrets of this ancient era that paved the way for life as we know it!
Timeframe: Approximately 4 billion years ago to 2.5 billion years ago.
Subdivisions of the Archean Eon
Eoarchean Era
Paleoarchean Era
Mesoarchean Era
Neoarchean Era
Proterozoic Eon
This legendary eon in Earth’s history marked the greatest transformation of the planet, as oxygen began to fill the atmosphere, the first multicellular organisms emerged, and the first supercontinents formed. Discover how this eon shaped life as we know it today and delve into fascinating details about the planet’s early beginnings. Join us in exploring the Proterozoic Eon, where life began to write its first chapters!
Timeframe: Approximately 2.5 billion years ago to 538.8 million years ago.
Subdivisions of the Proterozoic Eon
Paleoproterozoic Era
Siderian Period
Rhyacian Period
Orosirian Period
Statherian Period
Mesoproterozoic Era
Calymmian Period
Ectasian Period
Stenian Period
Neoproterozoic Era
Tonian Period
Cryogenian Period
Ediacaran Period
Phanerozoic Eon
The Phanerozoic Eon is the grand story of the emergence of life as we know it, where Earth teemed with multicellular organisms, dinosaurs roamed the planet, and mammals evolved, eventually leading to the rise of humanity. Discover this remarkable eon that witnessed the greatest extinctions and the most profound transformations. Embark now on a journey to explore fascinating chapters of Earth’s history during the Phanerozoic Eon!
Timeframe: Approximately 538.8 million years ago to the present.
Subdivisions of the Phanerozoic Eon
Paleozoic Era
Cambrian Period
Terreneuvian Epoch
Fortunian Stage
Stage 2
Series 2 Epoch
Stage 3
Stage 4
Miaolingian Epoch
Wuliuan Stage
Drumian Stage
Guzhangian Stage
Furongian Epoch
Paibian Stage
Jiangshanian Stage
Stage 10
Ordovician Period
Lower Epoch
Tremadocian Stage
Floian Stage
Middle Epoch
Dapingian Stage
Darriwilian Stage
Upper Epoch
Sandbian Stage
Katian Stage
Hirnantian Stage
Silurian Period
Llandovery Epoch
Rhuddanian Stage
Aeronian Stage
Telychian Stage
Wenlock Epoch
Sheinwoodian Stage
Homerian Stage
Ludlow Epoch
Gorstian Stage
Ludfordian Stage
Pridoli Epoch
Devonian Period
Lower Epoch
Lochkovian Stage
Pragian Stage
Emsian Stage
Middle Epoch
Eifelian Stage
Givetian Stage
Upper Epoch
Frasnian Stage
Famennian Stage
Carboniferous Period (Mississippian)
Lower Epoch
Tournaisian Stage
Middle Epoch
Visean Stage
Upper Epoch
Serpukhovian Stage
Carboniferous Period (Pennsylvanian)
Lower Epoch
Bashkirian Stage
Middle Epoch
Moscovian Stage
Upper Epoch
Kasimovian Stage
Gzhelian Stage
Permian Period
Cisuralian Epoch
Asselian Stage
Sakmarian Stage
Artinskian Stage
Kungurian Stage
Guadalupian Epoch
Roadian Stage
Wordian Stage
Capitanian Stage
Lopingian Epoch
Wuchiapingian Stage
Changhsingian Stage
Mesozoic Era
Triassic Period
Lower Epoch
Induan Stage
Olenekian Stage
Middle Epoch
Anisian Stage
Ladinian Stage
Upper Epoch
Carnian Stage
Norian Stage
Rhaetian Stage
Jurassic Period
Lower Epoch
Hettangian Stage
Sinemurian Stage
Pliensbachian Stage
Toarcian Stage
Middle Epoch
Aalenian Stage
Bajocian Stage
Bathonian Stage
Callovian Stage
Upper Epoch
Oxfordian Stage
Kimmeridgian Stage
Tithonian Stage
Cretaceous Period
Lower Epoch
Berriasian Stage
Valanginian Stage
Hauterivian Stage
Barremian Stage
Aptian Stage
Albian Stage
Upper Epoch
Cenomanian Stage
Turonian Stage
Coniacian Stage
Santonian Stage
Campanian Stage
Maastrichtian Stage
Cenozoic Era
Paleogene Period
Paleocene Epoch
Danian Stage
Selandian Stage
Thanetian Stage
Eocene Epoch
Ypresian Stage
Lutetian Stage
Bartonian Stage
Priabonian Stage
Oligocene Epoch
Rupelian Stage
Chattian Stage
Neogene Period
Miocene Epoch
Aquitanian Stage
Burdigalian Stage
Langhian Stage
Serravallian Stage
Tortonian Stage
Messinian Stage
Pliocene Epoch
Zanclean Stage
Piacenzian Stage
Quaternary Period
Pleistocene Epoch
Gelasian Stage
Calabrian Stage
Middle Pleistocene
Upper Pleistocene
Holocene Epoch
Greenlandian Stage
Northgrippian Stage
Meghalayan Stage
Tarikh Encyclopedia is an encyclopedia that includes the history of the universe, the history of Earth, and the history of humanity, organized in order with documented information from specialists, so you can get all your information from one place.