Mohammed Atta was an Egyptian national born on September 1, 1968. He is best known as one of the key figures in the September 11 attacks in 2001, where he served as the pilot of American Airlines Flight 11, which was crashed into the North Tower of the World Trade Center in New York City. Atta was a member of the extremist group al-Qaeda and played a significant role in planning the attacks. Atta studied architecture in Germany and became involved in radical Islamic movements during his time there. He was known for his leadership qualities and was selected to lead the hijacking operation. His actions on September 11 resulted in significant loss of life and had a profound impact on global security policies and international relations.