By Natural Philosopher Mike Prestwood
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The Book Timeline: 30 Philosophers, Touchstones

Every person and event in book from 2600 BCE to 1980.

TOUCHSTONES Edition: This timeline encapsulates the touchstone ideas in “30 Philosophers: A New Look at Timeless Ideas.” The book contains exactly fourscore of touchstones spanning from 2600 BCE to the 1900s.

30 Philosophers Timeline
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Big Bang Expansion
Big Bang Expansion
13.8 Billion Years Ago
Verified. Empirically supported and rationally deduced.

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 as a singularity. For more, check out: The Expanding Universe Explained.

Big History Thresholds: 1=Big Bang | 2=Stars&Galaxies | 3=Chemicals | 4=Solar System | 5=First Life | 6=TI | 7=Agrarian | 8=Science

Big Bang: Threshold 1 in Big History is the creation, or beginning, of our universe.

Touchstone: Senses & Perceptions
Olfaction or Sense of Smell Study.

How we perceive an external world starts to become clear. A 30 Philosophers touchstone: Chapter 17, “Alhazen and the Senses.” Since Alhazen and his pioneering work around 1020 CE, we have made significant advancements in understanding our senses and perceptions. Prior to Alhazen, most people on Earth believed in magical light-emitting-flashlight eyes.

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