what is so important about the year 10,500b.c.? there are sites such as the pyramids of giza, ankor watt, nasca lines that align perfectly to specific constellations in the night sky but only to this one date in time, yet these sites are said to be built long after this year and are many miles, ages, and cultures apart from one another.
what do you think the ancients were trying to tell us? what do you think the purpose of this is and why is the date 10.500b.c. so important?
To the ancient 10,500 BCE has no importance. It's really a group of people who think that the pyramids were constructed in that year who keep pushing the date but their archeology is invalid. And then the movies made the date (which the movie 10,500 BCE is not valid historically).
The Edgar Cayce Foundation believed that the dates of the pyramids were wrong. Which most archeologists and Egyptologists also agree on. So the Edgar Cayce Foundation hired Southern Methodist University to do new carbon dating studies on the pyramids. The problem is the methods of what was dated that was used.
In some instances, where they took wood from different pyramids--those are accurate. Some pyramids have wooden beams that support the base of the pyramid (others don't). Some pyramids used wood chips and reeds in the base column structure with mud--carbon dates debatable. But the mistake of the Edgar Cayce Foundation was trying to carbon date mud bricks of the pyramids. (the organic material inside the mudbricks). When mud bricks are dug, the top of the digging field goes on the bottom of the pyramid (or the bottom bricks). As they dig deeper into the earth, the material goes on the top of the pyramid. So Egyptians would dig a mudbrick field and the depth of the mudbrick field might go back to 10,000 BCE in the ground. Those bricks would be at the top of the pyramid.
Cayce Foundation and New Age people came up with the ridiculous that the pyramids were built from the "top down". Since the bricks at the top of the pyramid were older than the ones on the bottom. So they claim the pyramids began at the "top" in 10,500 BCE and that the young bricks are at the bottom. Which is impossible. Not logical. All they are stating in carbon dating mudbricks is how deep into the earth the mudbricks had been dug out of. Which has nothing to do with the real carbon date of any pyramid anyway.
The Last Glacial Maximum was actually from 22,000-14,000 years ago (20,000-12,000 BCE). The Younger Dryas (a debatable date) is a short period during the melt when the Earth froze up a bit-- roughly 10,800-10,000 years ago (8800-8000 BCE).
If anything the Younger Dryas is an important time frame, because the first ships were built large enough to carry livestock. A group in the Aegean had such ships and colonized each Aegean island (that was never connected to the mainland) and they also brought livestock with them (pigs, goats, sheep). That was roughly 8500 BCE (or 10,500 years ago). But not the same date that Cayce-New Agers use.