Master Timeline
116,000 Generations Ago This genus is more directly ancestral to humans and includes several species, such as Australopithecus afarensis (famously represented by “Lucy”), Australopithecus africanus, and others. Australopithecines show a greater commitment to bipedalism and have features more closely resembling modern humans, although they still retained some adaptations for climbing. This genus is known for […]
Genus: Australopithecus Read More »
320,000 Generations Ago Last Gorilla-Chimp-Human ancestor: The last common ancestor of gorillas, chimpanzees, and humans likely lived about 8 to 10 million years ago. Both the Nakalipithecus and Chororapithecus genuses are candidates. Genus Nakalipithecus: This “might” be the leading plausible candidate. From Kenya, they are dated to about 10 million years ago. Location: Emerged in Western
Gorillas Branch Off: Genus Nakalipithecus Read More »
As various great ape species fill niche areas around the globe, branches emerge. The last common ancestor of all known great apes, including humans, lived about 16.5 mya. That branch leads to modern orangatans, which split off again about 12.5 mya. The last known split of the modern orangatan was about 400,000 years ago. Orangutan
Orangutans Branch Off: Genus Sivapithecus Read More »
After the split of great apes and humans about 16 mya, and the split of the chimpanzee branch from humans about 7 mya, the two modern pan species split: chimpanzees and bonobos. Around 1.5 to 2 million years ago, the evolutionary branches of ancient primates led to the distinct emergence of what we now recognize
Emergence of the Chimpanzee Family Read More »
The groundbreaking discovery that humans were making bread 14,000 years ago, before the advent of agriculture, was published in 2018. Since grain is easy to grow, does this suggest agriculture might have started a few thousand years earlier? Under study, but the discovery of bread-making from around 14,000 years ago indeed suggests that humans were experimenting
Bread Making Pushed Back Read More »
Since grain is easy to grow, does this suggest agriculture might have started a few thousand years earlier? Under study, but the discovery of bread-making from around 14,000 years ago indeed suggests that humans were experimenting with grains before the widespread adoption of agriculture, which is traditionally dated to about 12,000 years ago with the
The Invention of Bread Read More »
The Maya civilization, emerging around 2600 BCE in what is now Mexico, Belize, Guatemala, and Honduras, represents one of the most complex societies of ancient America. Renowned for their achievements in mathematics, astronomy, art, and architecture, the Maya developed a sophisticated calendar system and constructed towering pyramids and cities that blended harmoniously with the surrounding
The Rise of the Maya Civilization Read More »
In what is now the United States, the Clovis culture, named after distinctive stone tools found near Clovis, New Mexico, represents one of the earliest known sophisticated societies in the Americas. Dating back to around 13,000 BCE, the Clovis people are believed to be among the first inhabitants of the continent, crossing the Bering Land
The Clovis Culture Read More »
In the early 12th century, the Khmer Empire, located in what is today Cambodia, undertook one of the most ambitious architectural projects in the history of Southeast Asia: the construction of Angkor Wat. Originally dedicated to the Hindu god Vishnu, this temple complex reflects the height of Khmer architectural, artistic, and spiritual achievement. Angkor Wat
In 322 BCE, following the disruption left in the wake of Alexander the Great’s incursions into the Indian subcontinent, Chandragupta Maurya founded the Maurya Empire. This marked the beginning of one of India’s largest and most powerful empires, stretching at its zenith from the Himalayas to the Deccan Plateau. The reign of Chandragupta and his
The Foundation of the Maurya Empire Read More »
In the lush, fertile lands of the Yangtze River Valley in ancient China, early inhabitants achieved a milestone that would revolutionize human society: the domestication of rice. Around 8,000 BCE, these innovative communities began to cultivate wild rice, laying the groundwork for sedentary agriculture and complex civilizations. This agricultural breakthrough not only provided a stable
The Domestication of Rice Read More »
The Māori, Polynesian navigators and explorers, reached the shores of Aotearoa, now known as New Zealand, around 1300 CE. Braving the vast Pacific aboard large, ocean-going waka (canoes), they established communities that would flourish into a distinctive culture deeply connected to the land and sea. The Māori developed a rich oral tradition, weaving tales of
The Māori Settlement of New Zealand: Earliest Known Read More »
The Lapita culture, named after a site in New Caledonia, was an Austronesian people known for their intricate pottery and advanced navigation skills. Around 1500 BCE, they began spreading eastwards across the vast Pacific, reaching as far as Tonga and Samoa. The Lapita are considered the ancestors of many modern Pacific Islanders, including Polynesians, Micronesians,
The Lapita Culture Read More »
2,600 Generations Ago (from 2020 CE) Long before the sails of European explorers dotted the horizon, the Australian continent witnessed the arrival of its first human inhabitants. Archaeological evidence, such as ancient tools and cave art, suggests that people arrived in Australia at least 65,000 years ago, marking one of the earliest known human migrations
The Settlement of Australia Read More »
30 Phil, Chapter 1 Touchstone 1 of 80: Big Bang. Immediately following the state of the singularity, the universe entered a phase of rapid expansion and cooling, known as the Big Bang Expansion. This critical period signifies not an explosion in space but the very expansion of space itself, from an incomprehensibly dense point known
Big Bang Expansion Read More »
About 3.85 billion years ago, the RNA world resembled a molecular wild west: replicators drifted. When chemistry favored a structure, it binded.
About 3.9 million years ago RNA-based protocells evolved. Likely with a mix of random DNA experiments.
Assembly of Protocells Read More »
Alongside or following the chemical evolution of organic molecules, the formation of prebiotic microenvironments, such as hydrothermal vents or warm little ponds, provided niches where concentrations of organic molecules could interact. These environments could have been crucial for the assembly of complex organic molecules and the initiation of catalytic cycles.
Formation of Prebiotic Microenvironments Read More »
While the 4.4 billion years ago is a guess as to when these processes might have started, the 4.1 billion years ago guess is a better representatoin of current understanding on when the needed building blocks of life evolved. Before the appearance of self-replicating molecules, there was a crucial phase of chemical evolution where simple
Chemical Evolution of Organic Molecules Read More »
About 4.2 billion years ago, chemical reactions in high temperature environments start replicating. Not life, just replication.
First Life: Self-Replicating Molecules Read More »
