The Apollo 11 moon landing required two spacecraft- The lunar module (LM) and command service module (CSM). Once in lunar orbit, the two would separate so the LM could land while the CSM waited in orbit. After launching from the lunar surface, the LM’s ascent stage would rendezvous and dock with the waiting CSM, then the astronauts would transfer back into the main spacecraft and head home. It sounds nearly impossible but that’s the way it was July 20, 1969.

Starting with the records of the National Advisory Committee for Aeronautics, which was formed in 1915 to study problems of flight and to conduct research in aeronautics, the National Archives holds in trust the records of NASA and other records related to aeronautics, including the Wright brothers' patent for their flying machine.

The patent act of 1790 established the rules for submitting a patent application. Each application had to be submitted with specifications, a patent drawing, and if possible a model of the invention. Eventually, models were no longer required.

The National Archives holds nearly three million patent case files from 1836-1956.