James Clerk Maxwell is the famous physicist who formulated the laws of electromagnetism. In the mid to late 19th century, Maxwell developed a set of equations that describe how electric and magnetic fields interact with each other and how they propagate through space. His groundbreaking work laid the foundation for much of modern physics and engineering, particularly in understanding electromagnetic waves, including light. Maxwell's Equations not only unified electricity and magnetism into a single theory but also paved the way for technological advancements in communications, electronics, and even the development of modern physics theories.