Clarke was the first person to propose geosynchronous satellites. In honor of this, "Geosynchronous Orbits" are also known as "Clarke Orbits". He also published three laws of prediction, the best known being the third: "Any sufficiently advanced technology is indistinguishable from magic". Clarke emigrated to Sri Lanka in 1956 largely to pursue his interest in scuba diving, and lived there until his death. He was knighted by the United Kingdom in 1998, and was awarded Sri Lanka's highest civil honor, Sri Lankabhimanya, in 2005.