The nine Gods of Ancient Egyptian and Mayan.
Actually ancient Egyptian writings very often talk of beings from the sky, the sky opening and bright lights coming down to teach them technology and give them wisdom. Many pictures and symbols resemble UFOs and aliens. Possibly aliens built the Great Pyramid. And these solid long lasting construction techniques were adopted by the Egyptians.
Ancient Egyptian legends tell of Tep Zepi, or the "first time". This is described as an age when "sky gods" came down to Earth and raised the land from mud and water.
They supposedly flew through the air in flying "boats" and brought laws and wisdom to man through a royal line of Pharaohs. And of course, this was all thrown out the window when Christianity came along. Keep in mind that the Gods were the one and only 'religion' that there was. No other conflicting beliefs? Why? Well because it was fact, not faith.
"The Nine" are mentioned in an inscription on Monument 6 of the Mayan site of Tortuguero, in the Mexican state of Tabasco. The monument was erected in 669 AD and is one of the very few pre-Conquest sources that mention 2012. Various translations or partial translations of the inscription exist. This is the most common one: "At the next creation, the Bolon Yokte Ku, or Nine Support Gods, will return." However, the actual word "return", sometimes translated as "descent", is not intact on the monument. Still, it is a safe conclusion to make that the missing word is return. Why? Because other Mayan sources reference the return of these deities at the ending of each baktun ~