TED Ed

Zen kōans: unsolvable enigmas designed to break your brain - Puqun Li

What really happened to the Library of Alexandria? - Elizabeth Cox

How the Normans changed the history of Europe - Mark Robinson

Can you solve the rogue AI riddle? - Dan Finkel

Why does your voice change as you get older? - Shaylin A. Schundler

Did ancient Troy really exist? - Einav Zamir Dembin

How can you change someone's mind? (hint: facts aren't always enough) - Hugo Mercier

The breathtaking courage of Harriet Tubman - Janell Hobson

A day in the life of an ancient Egyptian doctor - Elizabeth Cox

History vs. Augustus - Alex Gendler and Peta Greenfield