People often use shopping carts at the grocery store to carry their items. The ancient equivalent to this was a handcart without wheels dating back 22,000 years ago. It came before wheeled vehicles ...

A recent study suggests that ancient humans in North America may have used handcart-like transport systems as early as 22,000 ...

There are several National Park Service sites that do something that very few places on earth can do. They stop you righ ...