Engaruka is a place in Tanzania where people used to live a long, long time ago. They built houses and farms in this area using big stones. They did this because the ground was not good for farming, so they had to make their own level ground using the stones.
The people who lived in Engaruka also had a special way of farming called terracing. This means that they made flat steps on the side of a hill so that they could plant crops like beans, maize, and vegetables. They would water their crops using channels that they dug themselves.
The people of Engaruka were very clever and had a good system for trading with other communities. They collected and traded goods from other areas like salt and pottery.
Although the people of Engaruka are no longer there, you can still visit the ruins of their homes and see the terracing they created. This helps us to understand how people used to live a long, long time ago and how they worked together to survive.