- The Babylon people created calenders.
- The Maya people created the Mayan long count calender that uses the base twenty counting system they created.
- The Greeks created the ptolemaic system that proved that earth was in the centre of the universe a theory that was later disproven.
1. How did we find out that earth isn’t in the centre of the universe?
2. How does the base ten calender work?
- I now understand how we started to understand astronomy and how much our understanding has grown.