As we look back on human history, we can analyze certain moments and periods that have shaped how humanity operates today. Various inventions in particular have allowed the human race to move forward ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Bacon might just be the world's greatest invention and that's no exaggeration. It's crispy, salty, smoky, ...

NPR's Ailsa Chang speaks to mathematician Eugenia Cheng about the Pascaline -- a 17th-century invention credited as the first mechanical calculator.