# Stonehenge Constructors Applied Pythagoras’ Theorem 2,000 Years Before It Was Postulated

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Stonehenge is an ancient monument built somewhen between 3000 BC and 2000 BC in Wiltshire, England, UK. The mystery has always surrounded this monument which is part of a vaster network of Neolithic monuments spread on the British territory. In Megalith, a new book launched on this topic, the author carried out studies on the geometry of Neolithic monuments. Accordingly, Stonehenge constructors applied Pythagoras’ Theorem 2,000 years before the Greek postulated it.

According to the authors, all the Neolithic monuments were built by the astronomers of those times to easily calculate lunar and solar cycles, as well as eclipses. In other words, Stonehenge is a sophisticated calendar.

The Pythagoras’ Theorem, postulated around 550 BC, has been used for thousands of years to help constructors obtain perfect right-angles. The Pythagoras’ Theorem, in its generalized form, postulates that the square of the hypotenuse is equal to the sum of the squares of the other two sides.

##### Stonehenge constructors applied Pythagoras’ Theorem 2,000 years before it was postulated

What puzzled the researchers who contributed to the creation of the Megalith book, which launched recently, was the fact that Stonehenge site was built using the Pythagoras’ Theorem, 2,000 years before the Greek postulated his theorem.

In the earliest representation of the site, the centerpiece, the Stonehenge stones, is embedded in a perfect rectangle formed by four so-called Sarsen stones, as in the image below.

When the rectangle formed by the four Sarsen stones is cut diagonally, it creates a perfect Pythagorean 5:12:13 triangle.

“People often think of our ancestors as rough cavemen, but they were also sophisticated astronomers. They were applying Pythagorean geometry over 2000 years before Pythagoras was born,” explained John Matineau, the contributor and editor to the Megalith book.

But, researchers and mathematicians already believed that Pythagoras’ Theorem was used before the Greek postulated it around 550 BC, but nobody had a reliable proof of this hypothesis. Now, however, thanks to the recently launched Megalith book, researchers determined that Stonehenge constructors applied Pythagoras’ Theorem 2,000 years before it was postulated, proving the before-mentioned beliefs.

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