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Why It Is What Time It Is (The History of Time)

Adults History
How did we come up with our system of telling time? Why do we divide the day into 24 hours of 60 minutes each, and put 60 seconds in each minute? Where does the definition of a second come from? And who decides what clock shows the correct time? There's clearly a lot of questions when it comes to time.

Holiday Butter Cookies As Made By Kelsey Impicciche

Adults History
Holiday family time becomes even sweeter when you make these super soft butter cookies together!

Why Are Fewer People Getting Appendicitis?

Adults History
There are many other unforeseen health changes that seem to be related to the forces of modernization, like the increase in rates of diabetes, Crohn’s disease, and ADHD.

Five Firsts for Mars InSight

Adults History
Mars InSight will be the first to detect seismic activity on Mars’ surface, first to measure rate of heat transmitted from interior, first to dig nearly 5m down, first to measure magnetic fields on Mars’ surface, and first to use a robotic arm to place instruments on the surface of Mars (assuming it lands of course…)

Who decides what art means?

Adults History
There is a question that has been tossed around by philosophers and art critics for decades: how much should an artist's intention affect your interpretation of the work?

The Dinosaur On Your Thanksgiving Table

Adults History
Eating turkey this holiday season? Chowing down on a roast chicken? You’re eating a dinosaur!

Why is meningitis so dangerous?

Adults History
In 1987, thousands of people gathered in Saudi Arabia for the annual Hajj pilgrimage. But what started out as a celebration led to a worldwide health crisis: more than 2,000 cases of meningitis broke out, spreading across Saudi Arabia and the rest of the world.

Caffeine 101 | National Geographic

Adults History
Nearly 90% of the United States population has at least one caffeinated beverage every day. Learn about the chemistry of caffeine, how it causes increased alertness and focus, and how caffeine is capable of causing overdoses.

The Disturbing Thing Ghosts Could Be

Adults History
What’s that sound.....is it ghosts?

Ancient Mesopotamia 101 | National Geographic

Adults History
Ancient Mesopotamia proved that fertile land and the knowledge to cultivate it was a fortuitous recipe for wealth and civilization.

ABC of SLA

Teachers History
Scott Thornbury's history of second language acquisition (SLA) in a nutshell. A lot of great ideas.

How to Use the Google Newspaper Archive

Teachers History
A short YouTube video about the basics of using Google Newspaper Archive for classroom use. Search for local and regional content for your students, classes and lessons.

The princess who rewrote history

Adults History
Anna Komnene, daughter of Byzantine emperor Alexios, spent the last decade of her life creating a 500-page history of her father’s reign called “The Alexiad.”

Unbelievable Myths From The 1980s DEBUNKED!

Adults History
What crazy things did we believe back in the 1980s?

Why is Aristophanes called

Adults History
Aristophanes, often referred to as the Father of Comedy, wrote the world's earliest surviving comic dramas.

Primitive Technology: Iron prills

Adults History
Primitive Technology: Iron prills - Creating Iron prills from scratch

A day in the life of an ancient Egyptian doctor

Adults History
It's another sweltering morning in Memphis, Egypt. As the sunlight brightens the Nile, Peseshet checks her supplies.