The Mayans developed their calendar based on their advanced knowledge of the cosmos and mathematics. To this day, their calendar can predict every lunar eclipse with 30 seconds or so. On the day their calendar ends, the Earth and Sun are aligned with the center of the Milky Way Galaxy, an event that only occurs once every 26,000 years. Also on that day, we go into what’s called the precession of the equinoxes, also an event that occurs once every 26,000 years.
The Mayan calendar is based on cycles of 5,125 years, so we’re not only at the end of one of these cycles, we’re also at the end of the 26,000 year cycle. Because humans (as far as we know) weren’t in existence (or at least writing about these events) 26,000 years ago, we have no proof of what will happen.
Meanwhile, on a different continent, the Egyptians had their own calendar which also ends in 2012. Other civilizations have 2012 enddates for their calendar too, such as the Aztec, Hopi and Hindu calendars. Additionally, the I-Ching has a 2012 correlation.
Yet, where’s the proof that something will happen?
The Mayans and Sumerians knew of planets that weren’t “discovered” by modern society until the 1900’s. How did they know this? How did the Mayans know there was a Milky Way Galaxy and that there was a center to it, let alone know the exact day of the galactic alignment in 2012?
Similar to the pyramids in Egypt, some things still cannot be replicated with modern technology. The Mayan calendar and their knowledge of the cosmos are two prime examples.