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Akhet (season)
The Season of the Inundation or Flood () was the first season of the lunar and civil Egyptian calendars. It fell after the intercalary month of Days over the Year ('). and before the Season of the Emergence ('). In the Coptic and Egyptian calendars this season begins at the start of the month of Thout (about 11 September), continues through the months of Paopi and Hathor, before concluding at the end of Koiak (about 8 January). Names The pronunciation of the ancient Egyptian name for the Season of the Inundation is uncertain as the hieroglyphs do not record its vowels. It is conventionally transliterated Akhet. The name refers to the annual flooding of the Nile. Lunar calendar In the lunar calendar, the intercalary month was added as needed to maintain the heliacal rising of Sirius in the fourth month of the season of the Harvest. This meant that the Season of the Inundation usually lasted from September to January. Because the precise timing of the flood varied, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Philosophical Society
The American Philosophical Society (APS) is an American scholarly organization and learned society founded in 1743 in Philadelphia that promotes knowledge in the humanities and natural sciences through research, professional meetings, publications, source text, library resources, and community outreach. It was founded by the polymath Benjamin Franklin and is considered the first learned society founded in what became the United States.Philosophical Hall, the society's headquarters and a museum, is located just east of Independence Hall in Independence National Historical Park. In 1965, in recognition of the building's history, it was designated a National Historic Landmark. The society has about 1,000 elected members. As of April 2020, 5,710 members had been inducted since its creation. Through research grants, published journals, the American Philosophical Society Museum, an extensive library, and regular meetings, the society supports a variety of disciplines in the humanitie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heliacal Rising
The heliacal rising ( ) of a star or a planet occurs annually when it becomes visible above the eastern horizon at dawn just before sunrise (thus becoming "the Morning Star (other)#Astronomy, morning star"). A heliacal rising marks the time when a star or planet becomes visible for the first time again in the night sky after having set with the Sun at the western horizon in a previous sunset (its heliacal setting), having since been in the sky only during daytime, obscured by sunlight. Historically, the most important such rising is that of Sirius, which was an important feature of the Egyptian calendar and Egyptian astronomy, astronomical development. The rising of the Pleiades heralded the start of the Ancient Greek sailing season, using celestial navigation, as well as the farming season (attested by Hesiod in his Works and Days). Heliacal rising is one of several types of risings and settings, mostly they are grouped into morning and evening risings and settings of obj ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hathor (month)
Hathor (, ''Hathōr''), also known as Athyr (, ''Athýr'') and Hatur. (), is the third month of the ancient Egyptian and Coptic calendars. It lies between November 10 and December 9 of the Gregorian calendar. The month of Hathor is also the third month of the season of Akhet (Inundation) in Ancient Egypt, when the Nile floods historically covered the land of Egypt; they have not done so since the construction of the High Dam at Aswan. Name The name of the month comes from Hathor, one of the most important goddesses in ancient Egypt. Festivals in her honor are thought to have taken place throughout the month.Verner, Miroslav (2013). Temple of the World: Sanctuaries, Cults, and Mysteries of Ancient Egypt. American University in Cairo Press. pp. 43, 445 Coptic Synaxarium of the month of Hathor See also * Egyptian, Coptic, and Islamic calendar The Hijri calendar (), also known in English as the Islamic calendar, is a lunar calendar consisting of 12 lunar months in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thoth (god)
Thoth (from , borrowed from , , the reflex of " eis like the ibis") is an ancient Egyptian deity. In art, he was often depicted as a man with the head of an ibis or a baboon, animals sacred to him. His feminine counterpart was Seshat, and his wife was Maat. He was the god of the Moon, wisdom, knowledge, writing, hieroglyphs, science, magic, art and judgment. Thoth's chief temple was located in the city of Hermopolis ( , Egyptological pronunciation: Khemenu, ). Later known as in Egyptian Arabic, the Temple of Thoth was mostly destroyed before the beginning of the Christian era. Its very large pronaos was still standing in 1826, but was demolished and used as fill for the foundation of a sugar factory by the mid-19th century. Thoth played many vital and prominent roles in Egyptian mythology, such as maintaining the universe, and being one of the two deities (the other being Ma'at) who stood on either side of Ra's solar barque. In the later history of ancient Egypt, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Transliteration Of Ancient Egyptian
As used for Egyptology, transliteration of Ancient Egyptian is the process of converting (or mapping) texts written as Egyptian language symbols to alphabetic symbols representing uniliteral Egyptian hieroglyphs, hieroglyphs or their hieratic and Demotic (Egyptian), demotic counterparts. This process facilitates the publication of texts where the inclusion of photographs or drawings of an actual Egyptian document is impractical. Transliteration is not the same as transcription (linguistics), transcription. Transliteration is the representation of written symbols in a consistent way in a different writing system, while transcription indicates the pronunciation of a text. For the case of Ancient Egyptian, precise details of the phonology are not known completely. Transcription systems for Ancient Egyptian do exist, but they rely on linguistic reconstruction (depending on evidence from the Coptic language and other details) and are thus theoretical in nature. Egyptologists rely on tran ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Persian Egypt
The history of Persian Egypt refers to the two periods when ancient Egypt was controlled by the Achaemenid Empire: * Twenty-seventh Dynasty of Egypt (525–404 BC), established by the first Achaemenid conquest of Egypt. * Thirty-first Dynasty of Egypt (343–332 BC), established by the second Achaemenid conquest of Egypt. These two periods of satrapies were punctuated by a brief interval of Egyptian independence from 404 BC to 343 BC. Background In the 6th century BC, Persian rulers, particularly Cyrus the Great, sought to expand their imperialist agenda to include Egypt. Expansionism was a key strategy for empires of the ancient world to establish military and economic dominance, and Egypt was a priority of Cyrus the Great's, in large part due to the desirability of the Nile river and valley as economic assets. The contemporaneous Egyptian pharaoh, Amasis, attempted to ward off the occupation by forming alliances with neighbouring rulers, in particular Polycrates of Samos, as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Decans
The decans (; Egyptian ''bꜣktw'' or ''baktiu'', "hoseconnected with work") are 36 groups of stars (small constellations) used in the ancient Egyptian astronomy to conveniently divide the 360 degree ecliptic into 36 parts of 10 degrees each, both for theurgical and heliacal horological purposes. The decans each appeared, geocentrically, to rise consecutively on the horizon throughout each daily Earth rotation. The rising of each ''decan'' marked the beginning of a new decanal "hour" (Greek ''hōra'') of the night for the ancient Egyptians, and they were used as a sidereal star clock beginning by at least the 9th or 10th Dynasty (c. 2100 BCE). Because a new decan also appears heliacally every ten days (that is, every ten days, a new decanic star group reappears in the eastern sky at dawn right before the Sun rises, after a period of being obscured by the Sun's light), the ancient Greeks called them ''dekanoi'' (δεκανοί; pl. of δεκανός ''dekanos'') or "tenths". ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gregorian Calendar
The Gregorian calendar is the calendar used in most parts of the world. It went into effect in October 1582 following the papal bull issued by Pope Gregory XIII, which introduced it as a modification of, and replacement for, the Julian calendar. The principal change was to space leap years slightly differently to make the average calendar year 365.2425 days long rather than the Julian calendar's 365.25 days, thus more closely approximating the 365.2422-day tropical year, "tropical" or "solar" year that is determined by the Earth's revolution around the Sun. The rule for leap years is that every year divisible by four is a leap year, except for years that are divisible by 100, except in turn for years also divisible by 400. For example 1800 and 1900 were not leap years, but 2000 was. There were two reasons to establish the Gregorian calendar. First, the Julian calendar was based on the estimate that the average solar year is exactly 365.25 days long, an overestimate of a li ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Solar Year
A tropical year or solar year (or tropical period) is the time that the Sun takes to return to the same position in the sky – as viewed from the Earth or another celestial body of the Solar System – thus completing a full cycle of astronomical seasons. For example, it is the time from vernal equinox to the next vernal equinox, or from summer solstice to the next summer solstice. It is the type of year used by tropical solar calendars. The tropical year is one type of astronomical year and particular orbital period. Another type is the sidereal year (or sidereal orbital period), which is the time it takes Earth to complete one full orbit around the Sun as measured with respect to the fixed stars, resulting in a duration of 20 minutes longer than the tropical year, because of the precession of the equinoxes. Since antiquity, astronomers have progressively refined the definition of the tropical year. The entry for "year, tropical" in the '' Astronomical Almanac Online G ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Roman Egypt
Roman Egypt was an imperial province of the Roman Empire from 30 BC to AD 642. The province encompassed most of modern-day Egypt except for the Sinai. It was bordered by the provinces of Crete and Cyrenaica to the west and Judaea, later Arabia Petraea, to the East. Egypt was conquered by Roman forces in 30 BC and became a province of the new Roman Empire upon its formation in 27 BC. Egypt came to serve as a major producer of grain for the empire and had a highly developed urban economy. It was by far the wealthiest Roman province outside of Italy. The population of Roman Egypt is unknown, although estimates vary from . Alexandria, its capital, was the largest port and second largest city of the Roman Empire. Three Roman legions garrisoned Egypt in the early Roman imperial period, with the garrison later reduced to two, alongside formations of the Roman army. The major town of each '' nome'' (administrative region) was known as a metropolis and gr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ptolemaic Egypt
Ptolemaic is the adjective formed from the name Ptolemy, and may refer to: Pertaining to the Ptolemaic dynasty * Ptolemaic dynasty, the Macedonian Greek dynasty that ruled Egypt founded in 305 BC by Ptolemy I Soter *Ptolemaic Kingdom Pertaining to a certain ancient writer *Relating to Ptolemy Claudius Ptolemy (; , ; ; – 160s/170s AD) was a Greco-Roman mathematician, astronomer, astrologer, geographer, and music theorist who wrote about a dozen scientific treatises, three of which were important to later Byzantine science, Byzant ..., 2nd-century AD geographer and astronomer/astrologer * Ptolemaic system, a geocentric model of the universe developed in detail by the astronomer Claudius Ptolemaeus See also * Ptolemy (name) {{disambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Silt
Silt is granular material of a size between sand and clay and composed mostly of broken grains of quartz. Silt may occur as a soil (often mixed with sand or clay) or as sediment mixed in suspension (chemistry), suspension with water. Silt usually has a floury feel when dry, and lacks Plasticity (physics), plasticity when wet. Silt can also be felt by the tongue as granular when placed on the front teeth (even when mixed with clay particles). Silt is a common material, making up 45% of average modern mud. It is found in many river deltas and as wind-deposited accumulations, particularly in central Asia, north China, and North America. It is produced in both very hot climates (through such processes as collisions of quartz grains in dust storms) and very cold climates (through such processes as glacial grinding of quartz grains.) Loess is soil rich in silt which makes up some of the most fertile agricultural land on Earth. However, silt is very vulnerable to erosion, and it has poo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
