Khan Academy
Khan Academy: Human Evolution: Humanity on Earth
This session travels the earth tracking the evolution of humanity from the age of the dinosaurs through human beings. [12:26]
Khan Academy
Khan Academy: Time Scale of the Cosmos: Cosmological Time Scale 1
This video presents different major events in the history of the universe since the Big Bang, in order to put them into the context of time. It tries to demonstrate just how little time has really passed in our recorded human history....
Khan Academy
Khan Academy: Measuring Age on Earth: Chronometric Revolution
Discussion of the relatively recent changes in our ability as a species to shine light on our deep past. [9:53]
Khan Academy
Khan Academy: Humanity on Earth: Development of Agriculture and Writing
Looks at the transition of humans from the Paleolithic Age, when humans used stone tools, up to the development of agriculture in the Neolithic Age, which made settlements possible. The next critical development was the advent of...