As humanity searches for its extraterrestrial roots, amount the enigmatic objects found along the way are the Drop Stones of Tibet.

Who were the Dropa? The Dropa (also known as Dropas, Drok-pa or Dzopa) are, according to certain controversial writers, a race of dwarf-like extraterrestrials who landed near the Chinese-Tibetan border some twelve thousand years ago. Skeptics note, however, a number of problems with the case (and a lack of corroborative evidence), which offers significant doubt as to the reality of the more sensationalistic Dropa claims. Mainstream critics argue that the entire affair is a hoax.

Alleged Discovery -- Chi Pu Tei, a professor of archaeology at Beijing University, and his students were on an expedition to explore a series of caves in the pathless Himalayan mountains of the remote Bayan-Kara-Ula in Qinghai on the border of China and Tibet. The caves may have been artificially carved to be a system of tunnels and underground storerooms. The walls were squared and glazed, as if cut into the mountain with great heat.

They found many neat rows of tombs with short 4 ft 4 in inch skeletons buried within. The skeletons had abnormally big heads, and small, thin, fragile bodies. A member of the team suggested that these might be the remains of an unknown species of mountain gorilla. Prof. Chi Pu Tei was said to respond, "Who ever heard of apes burying one another?"

There were no epitaphs at the graves, but instead hundreds of one foot wide stone discs ("Dropa Stones") were found having 3/4 inch wide holes in their centers. On the walls were carved pictures of the rising sun, moon, stars, the land, mountains, and lines of pea-sized dots connecting the earth with the sky. Along with the discs, the cave drawings had been determined to be about 12,000 years old.

please note there is a buzz at the end of the last video... 

The disks were labeled along with other finds of the expedition and stored away at Beijing University for 20 years, during which deciphering attempts were unsuccessful. When the disks were closely examined by Dr. Tsum Um Nui of Beijing around 1958, he concluded that each groove actually consisted of a series of tiny hieroglyphs of unknown pattern and origin. The rows of hieroglyphics were so small that a magnifying glass was needed to see them clearly. Many of the hieroglyphics had been worn away by erosion. When Dr. Tsum deciphered the symbols, they told the story of the crash-landing of the Dropa spaceship and the killing of most of the survivors by local people.

According to Tsum Um Nui, one of the lines of the hieroglyphs reads, "The Dropas came down from the clouds in their aircraft. Our men, women and children hid in the caves ten times before sunrise. When at last they understood the sign language of the Dropas, they realized that the newcomers had peaceful intentions." Another section expresses "regret" by the Ham that the aliens' craft had crash-landed in such a remote and inaccessible mountain range and that there had been no way to building a new one to enable the Dropas to return to their own planet.

Dr. Tsum's report supposedly appeared in a professional journal in 1962. He was subsequently ridiculed to the point of self-imposed exile in Japan, where he died. The Peking Academy of Pre-history never allowed him to publish and never speak of his findings.

"Tsum Um Nui" is not a real Chinese name, and critics suggest that Dr. Tsum may not have actually existed. However Tsum Um Nui is a Japanese name adapted to Chinese language. There is no evidence of him beyond the Dropa allegations.

source