Louis Gridley Wu, a fictional character, is the protagonist in the Ringworld series of books, written by Larry Niven. Louis Wu was born in 2650 to Carlos Wu and Sharrol Janss. When he appears in Ringworld, Louis is 6′2″ (188 cm) tall. Without "Flatlander" bodypaint, his brown eyes show no discernible slant and his yellow-brown skinned features are a blended fusion of Earth's many races. Born a "Flatlander", Louis is best known among his friends for inventing the "Sabbatical"—going off alone in a spaceship outside the boundaries of known space until one can tolerate human company again. Louis was the first human being to make contact with the Trinoc species. He is also the only hominid ever to become a Protector and return to normal (Breeder) state afterward. Birth and childhood Louis Wu is the second of two children born to Carlos Wu and Sharrol Janss. Sharrol was married to Beowulf (or "Bey") Shaeffer at the time but the Fertility Board of the United Nations of Earth had absolute control over reproductive rights on that planet (its population was about 18 billion at the time). The Board denied a parenthood license to Shaeffer based on his albinism, considering it an undesirable genetic trait. Sharrol was unable to leave Earth because of her Flatland Phobia, a fear of being off-planet. They asked Carlos Wu, a friend of Sharrol's who has an unlimited parenthood license, to help them. Sharrol and Wu were married on a two-year contract arrangement; Tanya Wu was born in 2649 and Louis a year later, 2650. Shaeffer returned to Earth in 2650 and both children were raised by Sharrol and Beowulf. Carlos remained a family friend to both Beowulf and Sharrol. Several years later, amidst unusual and perilous circumstances, Louis, his sister, mother, and adoptive father (Beowulf) along with Carlos and Carlos' girlfriend, Feather Filip, secretly and illegally emigrated from Earth to Fafnir. Upon reaching Fafnir, Feather shot Shaeffer in the chest with an ARM punchgun, but Carlos managed to escape with Tanya and Louis. Sharrol killed Feather by cutting her throat, then decapitating her. Sharrol then placed Bey's head (after removing it from his body) in Carlos's nanotechnology-based autodoc where it reconstructed his body, sizing it to the Intensive Care Cavity of the autodoc, which was tailored to Carlos's body proportions. Eventually, Beowulf recovered, was reunited with Sharrol, and had two more children with her, Jeena and