Apollo 11 insignia. At Scheer's suggestion, the CM was named "Columbia" after "Columbiad", the giant cannon that launched a spacecraft (also from Florida) in Jules Verne's 1865 novel "From the Earth to the Moon". It also referenced Columbia, a historical name of the United States. The astronaut had personal preference kits (PPKs), small bags containing personal items of significance that they wanted to take with them on the mission. Five PPKs were carried on Apollo 11: three (one for each astronaut) were stowed on "Columbia" before launch, and two on "Eagle". Neil Armstrong's LM PPK contained a piece of wood from the
Apollo 15 German stamp dealer after their return. Ironically, this mission was one of very few that had been honored with the issue of a commemorative US stamp, with this first use of a lunar rover happening one decade after the launch of the first manned Mercury mission. In 1962, NASA contracted for fifteen Saturn V Moon rockets to achieve the Apollo program's goal of a manned landing on the Moon by 1970; at the time no one knew how many missions would be required to achieve this. Since success was obtained with the sixth Saturn V on Apollo 11, nine rockets