Euclid, often referred to as the "Father of Geometry," was an ancient Greek mathematician who lived around 300 BCE. He is best known for his seminal work "Elements," which systematically compiled and expanded upon the knowledge of geometry of his time, laying the foundational principles that would dominate the field for centuries. Although specific details about his life are sparse, Euclid is believed to have taught in Alexandria, Egypt, where he established a mathematical school. His influence persisted well into the Renaissance and continues to be a cornerstone of mathematics education today.