Children in China played with them thousands of years ago, and in ancient Greece children rolled bronze hoops.
Many of the things we know about ancient civilizations, such as Greece and Rome, are thanks to objects that have been perfectly preserved at the bottom of the sea.
Some said it was near Greece and had an army that once controlled much of Europe and Africa.
Then, in the early 18th century, in what is called the Age of Enlightenment, the British started to become interested in the traditions of ancient Greece and Rome.
They fought while the rest of his army traveled back to Greece to fight another day.
