Similar to the human's BCE and CE dating system, the Kerbals use BEA and AEA, which stands for before exiting atmosphere and after exiting atmosphere, respectively The Kerbal species developed in around 50,000 years, and their culture in only around 5000, this is an incredibly short amount of time for a race to evolve. their awkward walking style is attributed to their short legs and recent bipedal status, as it's suspected they only became a bipedal species in the last 100,000 years. In the year 627 BEA, a famous Kerbal astronomer, Kerbileio Kerman, discovered and named the 6 other planets in the local solar system and their moons. This is commonly agreed to be the start of Kerablkinds obsessive space-culture.