Science

Science is a systematic enterprise that builds and organizes knowledge in the form of testable explanations and predictions about the universe. The earliest roots of science can be traced to Ancient Egypt and Mesopotamia in around 3500 to 3000 BCE.

Via Wikipedia

Science a school subject, this topic has things like hypotheses, theories, anatomy, biology, and physics. For every conclusion, you will need a hypothesis. Things like calculating probability and solving a genetic code are pretty worthless, once you think about it. But, there is going to be a day where, people depends on that old knowledge, and use it for better or for worse.