Aliens and UFOs in prehistory

In fact find "evidence" of the presence of other advanced beings on our planet, from ancient times. In the Sahara, south of the mountains of Tassili, Algeria. For example, the remnants of old wells and shelters are more than five thousand paintings.

Henri Lhote was the first to explore, in 1933, and baptized with the name "the Martians." The wall paintings of Tassili, located on a sandy shelf of 800 km long by 60 wide, containing detailed information on the life of prehistoric man. Reproducible animals with great fidelity, also men in hunting scenes, but alongside them strange beings of huge round head fitted with a single eye.

Some skeptics suggested that it was empty gourds with men on their shoulders satisfy some primitive ritual, that theory is unfounded by the fact that never was cultivated this fruit in the heights of the plateau of Tassili.

Who were these people? Why keep such a resemblance to modern cases of extraterrestrial contact? The gods of Tassili are homonyms in other Nart of the world.
In Australia, Spain, France ... but the legacy alive of those paintings are found in northern Africa, embodied in the tribe of the Dogon.

Bribery in antiquity

The sobornono is something today.
Despite the terrible consequences that entails in today's society, among the Assyrians was a totally common practice.

This is demonstrated by the archaeological remains found in an administrative centre of the thirteenth century BC.
It found 46 entries and an archive of the then minister of Interior, which included a list of the names of employees who accepted bribes.
Revolutionary right?

How to tell how long a vestige

The method is the most carbon-14 dating used for organic archaeological remains.

It basa on the idea that the C14 isotope, which remains constant in all living beings, is radioactive, that is to be decomposing and transforming nitrogen when life ceases.
As we know how fast you do, seeing the amount of C14 remaining in a vestige organic-human, animal or plant-we can calculate the time elapsed since died. It is very effective with traces of less than 50,000 years old.

To date oldest rocks or objects were often resort to the method of potassium-argon, which applies to antiques of between 50,000 and 5 million years.
It basa that the potassium present in volcanic rocks and lava becomes argon through a natural process radioactive. As its speed disintegration is known, if we measure the amount of argon in a rest this fossil we can know their age.

From this method, scientists have perfected another even more precise when it comes to estimating the age objects to several hundred million years old. This is the system argon-argon, for which the sample is taken to analyse and is irradiated within a nuclear reactor to convert part of argon in a different isotope of that gas.