The Geologic Timeline
The Earth is pretty old. Our current, best estimate is that it is 4.54 billion years old, plus or minus 50 million years. Since then, however, a lot has happened. To help clarify the Earth’s timeline, geologists have divided the Earth’s history into various eras and periods. Each division of time represents a change in something, which happened on the planet. Learn more about the Earth’s history and geologic time scales, on this episode of Everything Everywhere Daily. Learn more about your ad choices. Visit megaphone.fm/adchoices

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The African Great Lakes: Ancient Waters That Shape Modern Africa

The African Great Lakes: Ancient Waters That Shape Modern Africa

They are some of the largest bodies of freshwater on Earth, yet they weren’t carved by ice, but by a continent literally tearing itself apart.  These lakes are older, deeper, and more biologically di...

5 Huhti 15min

The Icelandic Althing: The World's Oldest Parliament

The Icelandic Althing: The World's Oldest Parliament

Long before modern democracies, before constitutions or elections as we know them, a society of Viking settlers gathered in a windswept valley to create laws, settle disputes, and govern themselves wi...

4 Huhti 15min

Radium Girls: The True Story That Changed Workplace Safety Laws

Radium Girls: The True Story That Changed Workplace Safety Laws

In the early 20th century, a glowing new element promised progress, prosperity, and even health.  It lit watch dials, captivated the public, and symbolized the cutting edge of science.  But behind t...

3 Huhti 14min

Akhenaten: The First Monotheist

Akhenaten: The First Monotheist

Approximately 3,400 years ago, Egypt was at the height of its power during the 18th Dynasty.  In the midst of this period came a Pharoah who completely upended Egyptian society. He built an entirely ...

2 Huhti 15min

Questions and Answers: Volume 41

Questions and Answers: Volume 41

April derives from the Latin Aprilis, traditionally linked to aperire, meaning “to open,” referring to the opening of buds and flowers in spring.  Another theory connects it to Aphrodite, the Greek g...

1 Huhti 15min

The Rise, Fall, and Possible Rise of Maslin Agriculture

The Rise, Fall, and Possible Rise of Maslin Agriculture

For thousands of years, farmers didn’t plant just one crop; they planted many together in the same field.  This practice, known as maslin agriculture, once fed entire populations and offered a built-...

31 Maalis 14min

The Element Iodine: Its Discovery, Health Benefits, and Why It’s in Salt

The Element Iodine: Its Discovery, Health Benefits, and Why It’s in Salt

Iodine is far more important than you might think. It was discovered accidentally, yet it can be found almost everywhere. It’s something so small you only need a trace of it, yet without it, entire p...

30 Maalis 16min

The Decision to Drop the Atomic Bomb

The Decision to Drop the Atomic Bomb

In August 1945, a single decision changed the course of history and introduced a weapon unlike anything the world had ever seen.  The choice to drop the atomic bomb didn’t just end World War II; it o...

29 Maalis 15min

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