The ancient civilization recognized for its contributions to mathematics, particularly in geometry, is the Ancient Greeks. Pioneers such as Euclid and Pythagoras laid foundational principles that shaped modern mathematics. Euclid's work, particularly "Elements," compiled earlier knowledge and presented geometric concepts systematically, influencing education for centuries. The Greeks introduced rigor in mathematical proofs and the deductive reasoning method, shaping disciplines beyond mathematics, including philosophy and astronomy. Their advancements in geometry, number theory, and mathematical thought laid groundwork that facilitated further developments during the Renaissance, making their impact on mathematics profound and enduring.