History of quantum field theory

Quantum Field Theory is a physics theory that explains how energy and matter interact. It says that when energy and matter meet, they produce particles. These particles form fields which can be used to understand and predict how energy and matter behave. Quantum Field Theory has been around since the early 1900s, when scientists first started to think about particles as having a wave-like nature. Since then, the theory has been developed and refined through careful experimentation and study. Today, it's a key part of our understanding of the universe.