Intriguing findings

The people from the distant past there was no high-tech inventions, but it did not prevent them to have in their own possession usual items today. Archaeologists find army knives, dentures and even letters of complaint, which is already more than one thousand years. In our review of the nine items that can claim the title of "oldest" in its rode.1. Crystal zirconium (4, 4 billion years) 19,941,254

Scientists have dated the age of the crystal 4, 4 billion years old, making it the oldest part of the planet's crust. Crystal has been found in the hills of Jack Hills (arid region to the north of Perth, Australia) in 2001. Tiny translucent red crystal by bombarding it with electrons glows blue. To estimate it is worth noting that the Earth itself as a ball of molten rock formed 4, 5 billion years ago in the form. Age crystal means that the crust has appeared in just 160 million years after the formation of the solar sistemy.2. The prosthetic finger (3000)

The prosthetic toe, which was buried with the mummy 3000 years ago, considered the oldest in the history of the prosthesis. Scientists have conducted tests to see whether it can be used while walking. Researchers from the University of Manchester copied wooden finger and asked for a volunteer, who was missing a toe, diarrhea sandals with a prosthesis similar to those worn in ancient Egypt. It turned out that the prosthesis would really made for the convenience of walking, and not just for imitatsii.3. Swiss Army Knife (1800 years) 42,484,297

Maybe it's the world's first army knife. Anyway, it is a striking resemblance to modern multitool and has at least six different functions. In fact, this is not the Swiss unit - it comes from the Roman Empire, and was made in 200 AD The tool includes a pin for pulling out of the clam shell, beak spatula dostavaniya sauce out of a bottle, fork, spoon and knife to eat, and a toothpick.
5 stone tools (3, 3 million years old)

This item, like a nondescript stone, in fact one of the oldest stone tools that were ever found. It was made for half a million years before man appeared. Scientists have discovered that the stone tools in Kenya, near Lake Turkana, where they often find ancient artifacts. Scientists suggest that this tool was made 3, 3 million years ago, early human ancestors Australopithecus.
7. A sample of DNA (150,000 years) 26,844,457

Altamuriysky man became the oldest Neanderthal DNA that scientists have been able to study. About 150 000 years ago, the Neanderthal man fell into a well in the south of Italy. In 1993, cavers noticed his skull in a cave Lamalunga deep under the city Altamura. They decided to leave the skull and bones intact, as tens of thousands of years, the bones are literally rooted to the stalactites and stone walls of the cave. In 2015, researchers took a sample of material from the right shoulder of the skeleton and sent to the lab for research.
8. The music score (3 400 years) 54,365,819

Clay tablets with cuneiform characters "Hurrian" language have been found during excavations in the early 1950s in the ancient Syrian city of Ugarit (modern Ras Shamra). One of the documents in these tablets is a complete score anthem wife of the god of the moon Nick. It is the oldest known musical notation in the world. Its age is dated about 1400 BC ... It is noteworthy that even the text contains detailed instructions for the singer, accompanied by a harpist, as well as instructions on how to set up the harp. 9. A letter of complaint (3750 years) 47,737,570

The oldest complaint, which was filed in writing, executed 3750 years. Letter on clay tablets from 1750 BC, corresponds to the period of the Old Babylon. A complaint was filed by some Nanni on Ea-Nasir for supply of copper ore of poor quality, as well as disinformation and delay further deliveries.