Konstantinos Karatheodori realized his fondness for mathematics while taking measurements at the Great Pyramid of Cheops for the British company that constructed the dam of Aswan. He left Egypt to go to Germany and study under renowned mathematicians. After he concluded his doctorate, he wanted to return to Greece, but all he was offered was a job as a math teacher at a rural high school. He remained in Germany and became a university professor. He was well acquainted with Albert Einstein.