Mayan Prophecies and Calender

Lord Jose Arguelles
Jose Arguelles gained notoriety for his role in the Harmonic Convergence on August 17, 1987 and his mystical book about the Maya calendar, The Mayan Factor: Path Beyond Technology. Born of Mexican-American descent, the Mayan calendar became a childhood passion for him in the 1950s during the decade in which astronomers began to realize that Native Americans practiced a sophisticated astronomy. After more than 30 years of research, he is known as one of the world's foremost authorities of the Mayan calendar.
The overwhelming evidence of Mayan prophecy in the last decade of the millennia supports the accuracy of the calendar and the Arguelles' interpretation of the Dreamspell and Time Shift of July 26, 1992. After perceiving the final sequencing of the Mayan calendar in 1987, the Time Shift in 1992 was an adjustment of the annual calendar's beginning to July 26, so that the Dreamspell New Year falls on that date each year.
Since the Maya codices were destroyed during the European Conquest, the tables of dates and interpretations of codes were mostly destroyed. During the 500 years since the Conquest, Mayan tribes have adopted various new year dates and interpretations. In 1992, the University of Guatemala identified the July 26 date based on an eclipse of July 11, 1991 and the Dresden Codex. Arguelles interpreted that date as the new beginning of the solar year.

In 755 AD, Mayan Priests prophesied that the total solar eclipse of July 11, 1991 would herald two life altering events for humankind - Cosmic Awareness and Earth Changes. Shortly after 1:00 PM, on July 11, 1991, the prophecy seemingly began to unfold.
Mount Popocatepetl and the UFO's
Beneath the eclipse that the Maya had labeled 'The Sixth Sun', a silvery disc shaped object hovered silently above Mexico City. 17 people, unknown to each other, in different locations of Mexico City, videotaped the UFO. This sighting became the earliest most documented mass sightings in history. For months, teams of international researchers from the U.S., Mexico, and Japan followed a wave of UFO activity that connected with the volcano, Mount Popocatepetl. Sightings still continue.

Based on the July, 1991 eclipse, Jose identified the July 26, 1992, Time Shift. Using a day-by-day count, Euro-American astronomers could finally synchronize their calendars with the Maya Priests. The visitors from the sky that Jose called the Galactic Maya in The Mayan Factor, had perhaps made good on their promise to return on that date.
These are all just theories.
In 2009, a History Channel presentation of "Decoding the Past", discussed the last page of the Dresden Codex. If you understand the metaphors, you will get the messages.
"The last page of the Dresden Codex shows the destruction of the world via water. Waves gush from the mouth of a celestial dragon. More flood waters pour from sun and moon symbols on the underside of the monster's body. An aged goddess also pours flood water onto the Earth. At the bottom of the picture crouches a ruler of the underworld. Above the picture, about half of the 15 glyphs have been destroyed, but a few of the remaining ones consistently refer to "Black Earth" or "Black on High"