In 1865, a round skull was discovered in France, which belonged to the Stone Age. After the identification by the anatomist Professor Paul Bailuojia, he came to a conclusion that shocked the world: as early as the Stone Age, people were performing brain surgery. Hundreds more skulls were later found around the world.

In 1995, an adult male, aged between 35 and 45, was found in Tomb No. 392 at the Dawenkou Cultural Site of Fujia, Guangrao, Shandong, China, more than 5,000 years ago. When people cleaned up the dirt on the specimen, people were surprised to find that there was a round hole in the back of the right parietal bone of the tomb owner's skull...

In early April 2001, the Shandong Provincial Department of Culture invited some experts from the archaeological and medical circles in the province to conduct a preliminary identification of the main craniotomy of the tomb of Fujia No. 392 in Guangrao. The final conclusion is that this person had a craniotomy, and the operation was successful, and the patient survived for at least another two years after the operation.

This is not the only case of craniotomy in ancient China. According to records, the Duke of Taicang once opened a human skull and rearranged the brain, about 150 BC.

Similarly, many unsolved mysteries in the world are still lying quietly in some ancient libraries. From the ancient documents preserved in these libraries, we read about a civilized society that is familiar to us.

Around 306 BC, Ptolemy I, the successor of the Macedonian king Alexander, began to build the Library of Alexandria, which grew in size over the generations. It collects all the written transcripts in the world, whether they are bought, stolen, or copied. And the Macedonian king wrote letters to "all sovereign nations" asking to borrow their books. At the same time, scholars from all over the world gathered here, so the research center of the West was transferred from Athens to Alexandria. Euclid, Eratosthenes, Herophilas, and Callimachus, these radiant figures in history, all studied here.

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So how many books are in this library? Nobody knows for sure. However, according to later studies, it is estimated that there are at least 200,000 volumes of books, and some people estimate that it may reach 700,000 volumes, and the popular saying is usually called 500,000 volumes. Most of these books are Eastern documents, including Egypt, Mesopotamia, and India. It is unclear whether there are Chinese documents.

So what exactly is in this library? There is an ancient Greek astronomer named Aristarchus, who once served as the curator of the library. In the documents he left behind, it was found that he was the first person to propose that the earth rotates and revolves around the sun. Copernicus's "heliocentrology" predates 1800. In fact, this is not what he found, but what he read from the books in the collection.

The Jewish classic Kabbalah also says: "The earth inhabited by man revolves like a ball. When some of its inhabitants are below, others are above. When it is dark in a certain part of the earth, In other areas it is the day. Also, while people in one area are welcoming the dawn, other areas are shrouded in night.” Curiously, Kabbalah is clearly not the discoverer of this idea, and it is also a paraphrase of more ancient documents.

As we all know, medieval Copernicus first advocated the heliocentric theory, that the earth revolves around the sun. In order to insist on this scientific discovery, he was burned by the Italian church on the charge of heresy in the Piazza del Flowers. And the several documents we mentioned above are hundreds of years before Copernicus and some even thousands of years. In this way, Bruno's death is simply a malicious joke played by fate.

In the 18th century, there was a famous writer named Svevault, who was very attentive to ancient documents. While studying some ancient documents, he learned that Mars has two moons, and made this discovery public. More than 150 years later, astronomers found two moons around Mars, one named Phobos and the other named Timos, in 1877. Moreover, the law and cycle of the two satellites observed by astronomers are actually very close to the results obtained by Svevault from ancient documents.

In fact, many of the scientific discoveries of medieval European astronomers came not so much from observations of the sky as from the books of the ancients. However, where did the knowledge recorded in ancient texts come from? Where has the master of knowledge gone?