By Natural Philosopher Michael Alan Prestwood
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Timeline

_TST Master Timeline

All timeline entries.
Hourglass on the Beach
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_TST Master Timeline

MASTER TL: All timeline entries. It explores the history of the universe, Earth, science, and human history. You can filter topics too. Enjoy!

Singularity
Singularity
13.8 Billion Years Ago
Higly speculative.
Big Bang Expansion
Big Bang Expansion
13.8 Billion Years Ago
Verified. Empirically supported and rationally deduced.
Planck Era
Electrostatic plasma sphere in the dark. Tesla coil - physics experiment
13.8 Billion Years Ago: First Millisecond
Highly Speculative. An irrational idea rationally deduced.
Free Will
Free Will
How predetermined are our choices?
Evolution
Evolution
Our true origin story.
Grand Unification Era
Science physics formula e=mc2, Theory of relativity composed with colored and carved stones
13.8 Billion Years Ago: First Millisecond
Mostly speculative. Still an irrational idea rationally deduced.
Cultural Transmission
Cultural Transmission
What separates humans from animals.
Inflationary Epoch
Person shining a light at the sky and making the stars rapidly move in circles - fantasy concept
13.8 Billion Years Ago: First Millisecond
A bit speculative. Still an irrational idea rationally deduced but with some empirical data.
Electroweak Era
big bang, black hole, supermassive star, galaxy, cosmos, physical, science fiction wallpaper.
13.8 Billion Years Ago: First Millisecond
A bit speculative. Still an irrational idea rationally deduced but with some empirical data.
Nucleosynthesis Period
Closeup shot of a colorful plasma ball on a black background
13.8 Billion Years Ago: First Hour
A bit speculative. Still an irrational idea rationally deduced but with some empirical data.
First Atoms
Molecules or atom isolated on blue background
13.7 Billion Years Ago
Verified. Empirically supported and rationally deduced.
Population III Stars: Heavier Elements
NOIRLab/NSF/AURA/J. da Silva/Spaceengine, CC BY 4.0 , via Wikimedia Commons
13.6 Billion Years Ago
Verified. Empirically supported and rationally deduced.
Population II Stars: Heavy Element Synthesis
Cosmos Stars Cluster Structure Stunning Astrophotography Dramatic Celestial Wallpaper. Bright blue n
13.59 Billion Years Ago
Verified. Empirically supported and rationally deduced.
Galaxies are Born
M31 Andromeda Galaxy
13.4 Billion Years Ago
Verified. Empirically supported and rationally deduced.
Birth of the Milky Way
milky way forest
About 13.39 Billion Years Ago
Verified. Empirically supported and rationally deduced.
Interstellar Clouds: Organic Molecules
debris of a stellar explosion, 3d illustration
10 Billion Years Ago
Verified: 10 to 7 Billion Years Ago
Population I Stars: Like our Sun
Stars in observatory
10 Billion Years Ago
Verified. Empirically supported and rationally deduced.
Birth of the Sun
Epic sun surface flare prominence solar system
4.6 Billion Years Ago
Verified. Empirically supported and rationally deduced.
Earth is Born
Solar system planets set. The Sun and planets in a row on univer
4.5 Billion Years Ago
Verified. Empirically supported and rationally deduced.
First Atmosphere: Hydrogen & Helium
First Atmosphere: Hydrogen & Helium
4.48 Billion Years Ago
4.49 to 4.6 Billion Years Ago
Inorganic Precursors to Organic Molecules
Inorganic Precursors to Organic Molecules
4.45 Billion Years Ago
Spedulative guess: 4.2 to 4.4 Billion Years Ago
Moon Formation
Moon Formation
4.44 Billion Years Ago
About 60 million years after Earth forms.
Second Atmosphere: Carbon Dioxide & Nitrogen
Second Atmosphere: Carbon Dioxide & Nitrogen
4.3 Billion Years Ago
4.5 to 4 Billion Years Ago
First Oceans: Fresh Water
sunset north sea sea 2191645
4.2 Billion Years Ago
4 to 4.4 Billion Years Ago
Chemical Evolution of Organic Molecules
3d illustration. Model of serotonin molecule, Hormone of Happiness
4.1 Billion Years Ago
Spedulative guess: 4 to 4.4 Billion Years Ago
Formation of Prebiotic Microenvironments
Geyser in Yellowstone National Park
4 Billion Years Ago
Spedulative guess: 3.9 to 4.1 Billion Years Ago
First Life: Self-Replicating Molecules
a group of orange and red objects floating in the air
3.95 Billion Years Ago
Spedulative guess: 3.85 to 4.15 Billion Years Ago
Cellular Membranes
Cellular Membranes
3.9 Billion Years Ago
Spedulative guess: 3.8 to 4.1 Billion Years Ago
RNA World
RNA World
3.85 Billion Years Ago
Spedulative guess: 3.75 to 4.05 Billion Years Ago
Late Heavy Bombardment
Late Heavy Bombardment
3.8 Billion Yeas Ago
From 4.6 to 3.8 bya.
Assembly of Protocells
Assembly of Protocells
3.8 Billion Years Ago
Spedulative guess: 3.7 to 4 Billion Years Ago
Metabolic Pathways
Metabolic Pathways
3.75 Billion Years Ago
Spedulative guess: 3.65 to 3.95 Billion Years Ago
Prokaryotic Life
Prokaryotic Life
3.7 Billion Years Ago; Before LUCA
Spedulative guess: 3.6 to 3.9 Billion Years Ago
LUCA: Last Universal Common Ancestor
LUCA: Last Universal Common Ancestor
3.6 Billion BCE
Spedulative guess: 3.5 to 3.8 Billion Years Ago
Second Oceans: From Fresh to Salty
Second Oceans: From Fresh to Salty
3.5 Billion Years Ago
3.5 to 2.5 Billion Years Ago
Oldest Known Fossil-Microorganisms
micro organisms cells background
3.42 Billion BCE
3.42 to 3.7 Billion BCE
Cyanobacteria: Sun Energy as Food!
top view of woman holding paper cut sun and planet with renewable energy sources on turquoise
2.7 Billion Years Ago
2.7 to 2.6 BYA
The First True Eukaryotes
The First True Eukaryotes
2.4 Billion Years Ago (+/- 300 million years)
Third Atmosphere: Oxygen Atmosphere
planet-blue-atmosphere
2.4 Billion Years Ago
2.4 BYA to about 540 MYA
Protozoa Evolve
Protozoa Evolve
2 Billion Years Ago (+/- 100 million years)
Animals, Plants, and Fungi Split
Animals, Plants, and Fungi Split
1.7 Billion BCE
Blood Emerges
blood, cells, red
1.2 Billion Years Ago
Sexual Reproduction
Sperm and egg cell on microscope. Scientific background.
Before 1 Billion BCE
Precambrian era
Touch Emerges: Proto-Sensing.
Touch Emerges: Proto-Sensing.
800 Mya
Proto-Sensing.
First Multicellular Animals
green and black abstract painting
640 Million Years Ago
640 to 600 Million Years Ago
First Egg Layers
First Egg Layers
638 Million Years Ago
640 to 600 Million Years Ago
Presentient Animals Emerge: The Ediacaran Prelude
Presentient Animals Emerge: The Ediacaran Prelude
635-600 Million Years Ago
Proto-brain; Pre-brain memory; Presentient.
Chemoreception: Taste and Smell Emerge
Chemoreception: Taste and Smell Emerge
600 Mya
First True Animals – Comb Jellyfish
Jellyfish moving through water
560 Million BCE
560 to 550 Million Years Ago
Vision Emerges: The Pre-fish Chordates
Vision Emerges: The Pre-fish Chordates
540 Mya
Vision Emerges; Proto-Simple Brains; Pre-vertebrate Cord.
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Weekly Wisdom Builder 
4 minutes of leisurely exploration.
October 2, 2024 Edition

1START: Philosophy >

Confucius-Buddha-TouchstoneTruth

Are Buddhist or Confucian teachings closer to their original meaning?

2Science >

Timbre is the unique "tone color" of an instrument or voice, resulting from its fundamental frequency (measured in hertz) and harmonic overtones. It's the distinctive blend of base tones and overtones that gives each instrument its recognizable voice, beyond just pitch (e.g., A4 at 440 Hz).

What is the nature of timbre?

3Critical Thinking >

A false cause fallacy assumes that one event directly causes another without proof. It links two events improperly, ignoring other factors, often leading to flawed conclusions based on coincidence, not causality.

How do we know bloodletting doesn’t work?

4History!

vertical-Plato and Aristotle-350bce-TouchstoneTruth

Were Plato and Aristotle friends?

Quote of the Week
“Being and non-being create each other.”
  • Laozi
  • 550 BCE
Daoism
TAKE-AWAY: Opposites are interconnected and mutually dependent. In Daoism, contrasting forces like existence and non-existence, light and dark, or high and low, all rely on each other for meaning. Laozi teaches that balance and harmony are found when we recognize that these dualities are not in conflict but are essential to the natural order of life.
Time Left: 
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