Mysteries & Secrets Surrounding The Egyptians Pyramids

The planet earth is so old... we always talk about stages and eras... from dinosaur time to ice age to Stone Age to now. May be it was built during the time when planet earth was at its highest level of modernity during that time compared to us now. I'm talking about the cycle of the planet earth. It dies like it cleans up and starts a new life or new cycle again... and we are now living in the latest cycle. Hope u get what I mean. Hehehehe. And planet earth has been occupied by different creatures and everywhere there were mysterious events that went on and still going on... well, we wouldn't know. I wish we could travel thru time.

Not just Egyptians, but also the Indian civilizations of 5400 BC or the Chinese civilizations of 3600 BC; look at any of the ancient civilization and you'll see that they were lot smarter than we think and perceive. Those ancient civilizations make us look dumb on many occasions.
Think of it in this way, what if our ancient civilizations were far more advanced and modern, than what we are today. And then perhaps due to some catastrophic destruction or due to global warming or any other natural calamity, the ancients started falling off; became victim of something. Surviving humans restarted the civilization. So all that we are today, we may just be on the path of rediscovery.
The ancient civilizations knew about the alignment of starts and the Sun. They knew about magnetic North pole. They knew about Earth diameter. Were they stupid?
When there no answers, we think of aliens and magic.
Some how humans survived several disasters. Here we are today, rebuilding ourselves.