Round Trip to the Big Bang

The whole story in eight short pages — out to the beginning of everything, and back to this morning.

This flyover borrows its shape from Big History, the approach built by the historian David Christian: start at the beginning of everything, and watch each new layer — stars, planets, life, humans, farms, machines — make the next one possible. Eight pages, five minutes each, and at the end the American story you may have already read sits inside its full frame. When these pages leave you hungry, the full free course is the Big History Project.

1. Part One The Universe Begins

   13.8 billion – 4.6 billion years ago · Almost nothing — and stars cook the rest.

2. Part Two Earth, and Life

   4.6 billion – 300,000 years ago · A lucky planet, water, and life changing across deep time.

3. Part Three The Learning Animal

   300,000 – 12,000 years ago · Language, collective learning, and every continent settled.

4. Part Four Farming Changes Everything

   12,000 – 3,000 years ago · Surplus — and cities, writing, kings, and the granary question.

5. Part Five Empires, Faiths, and the Roads Between

   3,000 years ago – the 1400s · Farm-fed empires, world faiths, and roads that carried everything.

6. Part Six The World Becomes One

   the 1400s – the 1700s · Oceans become roads; the one-world system opens on brutal terms.

7. Part Seven Revolutions and Machines

   the 1700s – 1900 · Consent of the governed catches fire; coal and steam build empires.

8. Part Eight The Crowded, Connected Present

   1900 – now · Empires break, the world fills, the wires connect — and the pen passes to you.