Michelangelo is considered an achiever due to his exceptional talent as an artist, including painting, sculpture, architecture, and poetry. He created some of the most famous works of art in history, including the Sistine Chapel ceiling, the statue of David, and the Pietà. Michelangelo was known for his ambition and dedication to his craft, inspiring and influencing later generations of artists. His work continues to be admired and studied around the world, making him one of the greatest achievers in the history of Western art.