Archimedes, the ancient Greek mathematician and inventor, is credited with numerous discoveries, but one of his significant contributions is the principle of buoyancy, known as Archimedes' principle. This principle states that an object submerged in a fluid experiences an upward buoyant force equal to the weight of the fluid it displaces. Legend has it that Archimedes discovered this principle while bathing, famously exclaiming “Eureka!” in excitement as he realized its implications for understanding density and buoyancy. Archimedes' work laid foundational concepts in physics and mathematics, influencing future scientific thought and experimentation significantly.