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How to Figure Out the Day of the Week For Any Day Ever

Adults History
You might think that computers are the only things that run algorithms, but you're wrong. Here's a neat mental trick for calculating the day of the week for any day ever, developed by famous mathematician John H. Conway

14 Strange Ways of Life the Ancient Egyptians Practiced

Adults History
We often think that we are completely different from ancient people, but archaeology shows that we are quite wrong. Here is a list of 14 unbelievable facts about the life of ancient Egyptians.

Different types of chopsticks, explained

Adults History
They might look similar but there's differences between Japanese, Chinese and Korean chopsticks. Chopstick expert Edward Wang explains.

This Particle Breaks Time Symmetry

Adults History
Increasing entropy is NOT the only process that's asymmetric in time.

World's First Car!

Adults History
I got to drive the world's first car (replica), patented by Benz in 1886

Why is Herodotus called "The Father of History"? - Mark Robinson

Adults History
500 years ago, the writing of history as we know it didn't exist. The past was recorded as a list of events, with little explanation for their causes beyond accepting things as the will of the gods.

The complicated history of surfing - Scott Laderman

Adults History
Today, surfing is a multi-billion-dollar global industry, with tens of millions of enthusiasts worldwide. For some it's a serious sport; for others, just a way to let loose. But despite its casual association with fun and sun, surfing has a richer and deeper history than many realize. Scott Laderman shares the hidden history of surfing.

History vs. Che Guevara - Alex Gendler

Adults History
His face is recognized all over the world - the young medical student who became a revolutionary icon. But was Che Guevara a heroic champion of the poor, or a ruthless warlord who left a legacy of repression? Alex Gendler puts this controversial figure on trial in History vs. Che Guevara.

The myth of Prometheus - Iseult Gillespie

Adults History
Before the creation of humanity, the Greek gods won a great battle against a race of giants called the Titans. Most Titans were destroyed or driven to the eternal hell of Tartarus. But the Titan Prometheus, whose name means foresight, persuaded his brother Epimetheus to fight with him on the side of the Gods. Iseult Gillespie shares the myth of Prometheus.

Why Is Your Grandma So Short?

Adults History
Nutrition during the first few years of life has a huge impact on adult height, and since nutrition has been getting better over time, humanity - including your family - is getting taller.

Explore cave paintings in this 360 animated cave - Iseult Gillespie

Adults History
The paintings of our ancestors have been preserved in caves all over the world; the oldest we've found were made up to 40,000 years ago. What do these images tell us about the ancient human mind and the lives of their creators? In this special 360 TED-Ed animation, explore an ancient cave and its surroundings as Iseult Gillespie shares a brief history of cave paintings.

Kids Try 100 Years of Seafood | Bon Appetit

Adults History
In this episode of "Kids Try", the kids try 100 years of seafood. Let's see how the kids react to oysters rockefeller, lobster roll, crab cakes, Manhattan clam chowder, tuna casserole, molded salmon mousse, crab rangoon, clam dip, jambalaya, McDonald's Filet-o-Fish, popcorn shrimp, California roll sushi, blackened redfish, scallops, tropical shrimp salad, fried calamari, Stargazy pie, baja fish taco, poke bowl, and sushi burrito.

How aspirin was discovered - Krishna Sudhir

Adults History
4000 years ago, the ancient Sumerians made a surprising discovery: if they scraped the bark off a particular kind of tree and ate it, their pain disappeared. Little did they know that what they'd found was destined to influence the future course of medicine. Krishna Sudhir traces the history of aspirin.

An Asteroid Didn't Kill the Dinosaurs, Here's a New Theory About What Did

Adults History
A new scientific model has discovered what actually happened to the earth after the asteroid impact that killed the dinosaurs.

5 useless human body parts left over from evolution

Adults History
Your body is walking proof of evolution, but some parts have grown unnecessary over time. Here are five useless body parts left over from evolution.

A brief history of banned numbers - Alessandra King

Adults History
They say the pen is mightier than the sword, and authorities have often agreed. From outlawed religious tracts and revolutionary manifestos to censored and burned books, we know the potential power of words to overturn the social order. But as strange as it may seem, some numbers have also been considered dangerous enough to ban. Alessandra King details the history behind illegal numbers.

New York: America's MEGACITY

Adults History
The story of New York City, America's megalopolis.

How do executive orders work? - Christina Greer

Adults History
On January 1, 1863, Abraham Lincoln legally changed the status of over 3 million people from "slave" to "free." But his emancipation proclamation wasn't a law - it was an executive order. The framers of the American Constitution made this power available to the executive branch. But what exactly is this tool, how does it work, and what's the extent of its power? Christina Greer explains.

Ancient Humans & Neanderthals Had Sex, Here's How It Changed Us Forever

Adults History
We've known for a while that ancient humans got busy with Neanderthals, but how exactly did that Neanderthal DNA affect modern humans?

The rise and fall of the Berlin Wall - Konrad H. Jarausch

Adults History
On August 13, 1961, construction workers began tearing up streets and erecting barriers in Berlin. This night marked the beginning of one of history's most infamous dividing lines: the Berlin Wall. Construction continued for a decade as the wall cut through neighborhoods, separated families, and divided not just Germany, but the world. Konrad H. Jarausch details the history of the Berlin Wall.

The myth of Cupid and Psyche - Brendan Pelsue

Adults History
Psyche was born so beautiful that she was worshipped as a new incarnation of Venus, the goddess of love. But human lovers were too intimidated to approach her, and Apollo recommended her father abandon her on a crag where she would marry "a cruel and savage, serpent-like winged evil." But Psyche's story ended up being much more interesting. Brendan Pelsue shares the myth of Cupid and Psyche.