泛滥之谜 01

The Nile.

Draining over 3 million square kilometres of Africa

Then flowing through one of the harshest deserts in the world.

It's the world's longest river.

This river was the powerhouse behind the world's first great civilization.

Without the Nile's extraordinary fertility

There would be no Tutankhamen, no Cleopatra, no pyramids.

It changed the world forever.

Each year, the Nile performed a miracle

A great flood that brought not only water to the parched desert

But a staggering 140 million tonnes of fertile volcanic soil.

Somewhere far away

Powerful forces gathered to swell the river and send it racing downstream.

But the Ancient Egyptians had no idea where this flood came from.

They believed it was the gods who sent these vital gifts so reliably each year.