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Egyptian astronomy started in prehistoric times, in the Predynastic Period. In the 5th millennium BCE, the stone circles at Nabta Playa may have made use of astronomical alignments. By the time the historical Dynastic Period began in the 3rd millennium BCE, the 365 day period of the Egyptian calendar was already in use, and the observation of ...
The discovery of the observatory "is a significant contribution" to an understanding today of Ancient Egyptian astronomy and scientific practices, noted Ancient-Origins.net.
Rujm el-Hiri is an ancient megalithic monument consisting of concentric circles of stone with a tumulus at center, in the Golan Heights, territory occupied by Israel. It is believed that the site was used as an ancient calendar. At the times of the two equinoxes, the sun's rays would pass between two rocks, at the eastern edge of the compound.
The Antikythera mechanism, an ancient Greek astronomical observational device for calculating the movements of the Sun and the Moon, possibly the planets, dates from about 150–100 BC, and was the first ancestor of an astronomical computer. It was discovered in an ancient shipwreck off the Greek island of Antikythera, between Kythera and Crete.
The most famous Egyptian pyramids are those found at Giza, on the outskirts of Cairo. Several of the Giza pyramids are counted among the largest structures ever built. [9] The Pyramid of Khufu is the largest Egyptian pyramid and the last of the Seven Wonders of the Ancient World still in existence, despite being the oldest by about 2,000 years ...
Heliopolis is the Latinised form of the Greek name Hēlioúpolis (Ἡλιούπολις), meaning "City of the Sun". Helios, the personified and deified form of the sun, was identified by the Greeks with the native Egyptian gods Ra and Atum, whose principal cult was located in the city. Its native name was iwnw ("The Pillars"), whose exact ...
The Great Pyramid of Giza[a] is the largest Egyptian pyramid. It served as the tomb of pharaoh Khufu, who ruled during the Fourth Dynasty of the Old Kingdom. Built c. 2600 BC, [3] over a period of about 27 years, [4] the pyramid is the oldest of the Seven Wonders of the Ancient World, and the only wonder that has remained largely intact.
Babylonian astronomy was the study or recording of celestial objects during the early history of Mesopotamia. The numeral system used, sexagesimal, was based on sixty, as opposed to ten in the modern decimal system. This system simplified the calculating and recording of unusually great and small numbers. [ 1 ]