What is mathematician Euclid known for?

Euclid, often referred to as the "Father of Geometry," is best known for his work "Elements," a comprehensive compilation of the knowledge of geometry in his time. This 13-book series systematically presents the principles of geometry, number theory, and mathematical logic, laying the foundation for modern mathematics. Euclid's axiomatic approach and rigorous proofs have profoundly influenced mathematics and education for centuries. His work remains a fundamental reference in geometry today.