What did John Duns Scot contributed?

John Duns Scotus was a medieval Scottish philosopher and theologian known for his significant contributions to scholastic thought. He is best recognized for his complex theories on metaphysics, particularly his concept of "haecceity," which explains the individuality of objects. His work emphasized the importance of will in moral philosophy and defended the Immaculate Conception of Mary. Scotus's ideas influenced later thinkers, bridging the gap between medieval and modern philosophy.