It's back to the past, with the Once Upon a Time series. How did America get its name? Take a trip back to Renaissance Italy in this first episode of The Explorers to find out.

He may not know it yet, but Amerigo Vespucci's life is about to change. Though he works as a successful banker, Amerigo feels restless and aspires to greater things. Luckily, Lorenzo de' Medici has offered him the opportunity of a lifetime: a trip to Spain to help Christopher Columbus prepare for an expedition to the Indies.

Amerigo Vespucci sails for the New World to explore new territories discovered by Columbus, draw accurate maps, and find the true route to the Indies. As his ship approaches "Little Venice," or Venezuela, the crew comes into contact with some local natives.

The explorers are exploring a new territory, full of lush vegetation, exotic wildlife, and, to the joy of a few explorers, gold! Perhaps they could use a lesson on the dangers of greed...

Amerigo Vespucci sets foot for the first time on the American continent. He collects all manner of plants and animals, only to drop them into the Amazon River.

Amerigo and his crew continue exploring the New World. Their water is almost gone. Fortunately, the river they're sailing on turns out to be the Amazon, so they won't die of thirst after all.

Vespuccia or America? In the last episode of this fun cartoon, we find out how the name of the new continent now known as "America" came about.

In this episode of the "Once Upon a Time" animated series on world explorers, we begin to learn the history of Cairo and the Nile River in Egypt.

In the second segment of this episode of Les Explorateurs (The Explorers), James Bruce, our intrepid adventurer, encounters some pirates while trying to reach the source of the Nile.

As James Bruce and his crew arrive in Massawa in hopes of meeting the king, they are thwarted by the king's messenger, who was ordered not to let in any foreigners. But since the royal palace is in need of a doctor, and Bruce happens to be one, he may be forced to make an exception....

The explorers discover Abyssinia and the customs of its inhabitants, who have been cut off from the rest of the world for centuries. Will their visit bring a clash of cultures or a peaceful understanding? Find out in this episode.

The explorers arrive at Gondar, the former imperial capital of Ethiopia, and marvel at the wonders of the palace. But a deadly illness is threatening the lives of the children of the royal family...

After curing the queen mother's grandchildren of smallpox, James Bruce meets with the Ethiopian emperor, Tekle Haymanot, to tell him of his plans to discover the source of the Nile. But he soon finds out that he'll have to demonstrate his warrior skills if he wants to reach Lake Tana.

James Bruce, the intrepid Scottish explorer, finally reaches his goal, the source of the Nile... or so he thought. After all his trouble, his exploits are not well received in England. But his legacy will live on.

In the first episode of this new cartoon series, Once Upon a Time... Planet Earth, deforestation issues are addressed from outer space... Just grow a few trees in a spaceship and plant them on land later!