THOR HEYERDAHL (1914?2002), Norwegian scientist, explorer and writer. His expeditions with vessels like Kon-Tiki, Ra and Tigris made him one of the best-known Norwegians of all time.NORWEGIAN HERITAGE is a series of illustrated books about our most important and best-known national icons. The respective titles introduce major personalities from the worlds of art and literature, science and sports, but also the many natural wonders of the country, as well as significant historical periods and cultural expressions. Each book offers an updated introduction to readers who wish to familiarize themselves with a given subject.