How The Great Pyramid of Giza built.

The Great Pyramid of Giza, also known as the Pyramid of Khufu or the Pyramid of Cheops, is the largest and oldest of the three pyramids in the Giza pyramid complex, located on the outskirts of Cairo, Egypt. It is believed to have been built as a tomb for the pharaoh Khufu, who ruled Egypt during the 4th dynasty in the Old Kingdom period, around 2500 BCE.

The construction of the Great Pyramid of Giza was a monumental feat of engineering, requiring the mobilization of tens of thousands of workers, and the organization of massive resources and materials. The construction of the pyramid began around 2580 BCE, during the early years of Khufu's reign, and it is estimated to have taken around 20 years to complete.

The exact methods and techniques used by the ancient Egyptians to build the pyramid are still the subject of much speculation and debate. However, based on the available evidence, historians and archaeologists have been able to piece together some of the key elements of the construction process.

The first step in building the Great Pyramid was to quarry the limestone blocks that were used to build the pyramid. The quarries were located about 500 miles south of Giza, in the area now known as Tura. The blocks were cut from the bedrock using copper chisels and saws, and then transported to the pyramid site using boats and sledges.

Once the blocks arrived at the pyramid site, they were hauled up the pyramid using ramps and pulleys. The ramps were constructed using mud bricks and limestone blocks, and were built on a slope of about 8 percent. It is estimated that it would have taken around 20,000 workers to construct the ramps, and that the ramps themselves would have been as long as a mile.

As the pyramid grew higher, the ramps had to be extended, and workers had to use more and more complex systems of pulleys and levers to lift the massive blocks into place. At the peak of construction, it is estimated that there were as many as 100,000 workers at the pyramid site, many of whom were skilled craftsmen and artisans.

One of the most remarkable features of the Great Pyramid is its precise alignment with the cardinal points of the compass. The pyramid is oriented almost exactly north-south, with an error of less than 0.05 degrees. It is not known how the ancient Egyptians were able to achieve this level of accuracy, but it is thought that they may have used the stars or the sun to guide their work.

As the pyramid took shape, a complex system of internal passages and chambers was built inside. The main entrance to the pyramid was located on the north side, and led to a descending corridor that sloped down to the subterranean chamber. This chamber was cut into the bedrock and was intended to house the pharaoh's sarcophagus.

Above the subterranean chamber was the Queen's Chamber, which is thought to have been a storage chamber for the pharaoh's treasures. The King's Chamber was located higher up in the pyramid, and was intended to house the pharaoh's sarcophagus. This chamber is made of red granite and is lined with huge blocks of limestone. The sarcophagus itself, however, was empty when the pyramid was discovered, leading to speculation that the tomb had been looted in ancient times.

The construction of the Great Pyramid of Giza was a massive undertaking that required the mobilization of huge resources and manpower. It is estimated that the pyramid contains over 2 million blocks of limestone, each weighing between 2 and 70 tons. The total weight of the pyramid is estimated to be around 6 million tons.

Despite the massive scale of the project, the Great Pyramid of Giza was completed