243K views · 326 reactions | She came to the U.S. unable to speak English. One of her first jobs was at McDonalds. Now she's an astronaut. And making history.  | Humankind | Facebook

536K views · 401 reactions | No one knew how to cheer up this sad cockatoo....until she heard "Old Town Road." The rest is history.  | Humankind | Facebook

In the late 19th century, many thought bacteria were mere byproducts of illness until German physician Robert Koch proved the germ theory of disease. By isolating a microbe, infecting an animal, and re-isolating it, he not only established the link between microbes and disease but also silenced critics and revolutionized medicine. Origins: The Journey of Humankind is streaming on Disney . | National Geographic History

Ancestors The Humankind Odyssey Ending 4K