In this episode of our journey through time, we meet the Neanderthals, who roamed the European continent for around 65,000 years before disappearing almost without a trace. They lived as clans of hunter-gatherers, and knew how to make tools and fire.

The Neanderthals discover that tools can be made from stones, new hunting methods are discovered, and the many different clans try to resolve disputes through negotiation.

The banished hunter finds a mate and is accepted into his new family as an equal. But there is someone who does not like that at all...

The Neaderthals discover that fire makes meat taste better than ever! As time goes on, they also refine their hunting techniques and even work out how to lay rather sophisticated traps.

The climate is getting colder, the animals are disappearing, and the Neanderthals are gradually running out of food. Times are tough, and the Neanderthals are being forced to do whatever they can to survive.

The cold weather and a shortage of food eventually drove the Neanderthals to extinction, clearing the stage for Cro-Magnons, our direct ancestors. But you'll have to wait for the next episode to find out more about that!

Ancient Greece was home to many great thinkers, such as the physician Hippocrates, the philosopher Socrates, the sculptor Phidias, and the mathematician Archimedes.

In this video, you will learn what a gnomon was used for, who Euclid and Eratosthenes were, and what secret Archimedes thinks he discovered after his apprenticeship with Euclid.

The king suspects that his goldsmith has cheated him and his new crown isn’t really made of pure gold. Can Archimedes help determine what the crown is made of without smashing it apart?

How will Archimedes be able to prove that the crown is not made of pure gold? Seeing his talent, the King asks him to help create systems for work that needs to be done.

The dying king asks Archimedes to work as an inventor of war machines, because the Romans want to attack the city of Syracuse. Will he be able to help come up with new ideas to help the army?

Although Archimedes always wanted only to improve mankind, he has to use his intelligence to build war machines for the Greeks in his old age. The Romans want to hire him to work for them, but that is not to be …

In Part I of this episode, which deals with human birth, we start with the Big Bang and follow a troop of sperm as they make their way to the ovum.

One lucky sperm has made it into the egg – now the chromosomes from the sperm and the egg can start to link up.

Cell division is now in full swing, and inside the embryo, the organs are being formed! All the cells now have to reach the places where they are needed.