October 6th is the birthday of Thor Heyerdahl (born 1914, died April 18, 2002). Although his east-to-west theory of Pacific Ocean transmigration was later disproved by genetics studies, his many adventures were still remarkable.
Today, October 6th, is also the birthday of science fiction author David Brin, who was born in 1950. He wrote The Postman, which was very loosely the foundation of a movie by Kevin Costner.