Ancient civilizations came up with many great ideas that changed history. Here are some important ones:

1. Writing Systems:

   • The Sumerians created cuneiform writing around 3200 BCE. This made them some of the first people to write things down.

2. Mathematics:

   • The Babylonians designed a number system based on 60 around 3000 BCE. This is why we have 60 seconds in a minute today.

3. Architecture:

   • The Egyptians built the Pyramids of Giza between 2580-2560 BCE. These amazing structures showed how advanced their engineering was.

4. Farming Techniques:

   • The Chinese developed rice farming and irrigation systems around 7000 BCE. This helped them grow more food.

5. Medicine:

   • The Hippocratic Corpus from ancient Greece, created around 400 BCE, was one of the first texts on medicine. It helped shape the way we think about health today.

These important ideas, along with many others, played a big role in everyday life and how future societies were run.