270 BC

Centuries: 4th century BC - 3rd century BC - 2nd century BC Decades: 320s BC 310s BC 300s BC 290s BC 280s BC 270s BC - 260s BC 250s BC 240s BC 230s BC 220s BC 275 BC 274 BC 273 BC 272 BC 271 BC - 270 BC - 269 BC 268 BC 267 BC 266 BC 265 BC 270 BC - Events. Hiero becomes tyrant of Syracuse. Fall of Rhegium to the Romans. 270 BC - Births. Apollonius of Rhodes, Author of the epic "Argonautica" 270 BC - Deaths. Marcus Valerius Corvus, Roman her ...

Including:

• 270 BC - Events
• 270 BC - Births
• 270 BC - Deaths

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Ravens can thrive in varied climates. They range from the Arctic to the deserts of North Africa, and to islands in the Pacific Ocean; indeed this species has the largest range of any member of the genus. Most ravens prefer wooded areas (with large, open land nearby) or coastal regions for their nesting sites and feeding grounds. In some areas of large human population, such as California in the United States, ravens take advantage of an enlarged food supply and have seen a surge in population. In other areas, such as parts of Europe and the eastern United States, raven populations have been greatly red ...

See also:

Common Raven, Common Raven - Overview, Common Raven - Ravens in legend and literature, Common Raven - Related species

Read more here: » Common Raven: Encyclopedia II - Common Raven - Overview

Alexander the Great (in Greek Μέγας Αλέξανδρος, transliterated Megas Alexandros; born in Pella, Macedon, in July, 356 BC, died in Babylon, on June 10, 323 BC), King of Macedon 336–323 BC, is arguably the most successful military commander in world history, conquering most of the known world before his death. Alexander is also known in the Zoroastrian Middle Persian work Arda Wiraz Nāmag as "the accursed Alexander" due to his conquest of the ...

Including:

• Alexander the Great - Early life
• Alexander the Great - The ascent of Macedon
• Alexander the Great - Period of conquests
• Alexander the Great - The defeat of the Persian Empire
• Alexander the Great - The invasion of India
• Alexander the Great - After India
• Alexander the Great - Alexander's marriages and sexuality
• Alexander the Great - The army of Alexander the Great before the Battle of Gaugamela
• Alexander the Great - Infantry
• Alexander the Great - Cavalry
• Alexander the Great - Death
• Alexander the Great - Legacy and division of the empire
• Alexander the Great - Timeline
• Alexander the Great - Alexander's character
• Alexander the Great - Stories and legends
• Alexander the Great - Ancient sources
• Alexander the Great - Alexander's legend
• Alexander the Great - Alexander's legend in non-Western sources
• Alexander the Great - Main towns founded by Alexander
• Alexander the Great - Alexander in popular media
• Alexander the Great - Note

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In astronomy, heliocentrism is the theory that the Sun is at the center of the Universe and/or the Solar System. The word is derived from the Greek (Helios = "Sun" and kentron = "Center"). Historically, heliocentrism is opposed to geocentrism and currently to modern geocentrism, which places the earth at the center. (The distinction between the Solar System and the Universe was not clear until modern times, but extremely important relative to the controversy over cosmology and religion.) In the 16th and 17th centuries, w ...

Including:

• Heliocentrism - Development of the idea
• Heliocentrism - Religious disputes over heliocentrism
• Heliocentrism - The view of modern science
• Heliocentrism - Modern use of geocentric and heliocentric

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Apollonius of Rhodes (Apollonius Rhodius), librarian at Alexandria, was a Greek grammarian and epic poet, who flourished under the Ptolemies Philopator and Epiphanes (222-181 BC). He was the author of Argonautica, a literary epic retelling of ancient material concerning Jason and the Argonauts' quest for the Golden Fleece in the mythic land of Colchis. Born at Alexandria, perhaps about 270 BC, Apollonius was a pupil of Callimachus, with whom he subsequently quarrelled. Callimachus' "Hymn to Apollo", closes with some lines that allude to Apollonius, and dates about 248 or 247 BC, wh ...

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A water clock or clepsydra is a device for measuring time by letting water regularly flow out of a container, usually through a tiny aperture. While never reaching the level of accuracy based on today's standards of timekeeping, the water clock was the most accurate and commonly used timekeeping device for millennia, until it was replaced by the more accurate pendulum clock in the 17th century. According to researcher Jim Maciejewski, water clocks were among the earliest timekeepers created by mankind. While there is no ...

Including:

• Water clock - Water Clock Overview
• Water clock - Su Song's Astronomical Clock Tower
• Water clock - Water Clock-related Reading List

Read more here: » Water clock: Encyclopedia - Water clock

This article is about the species Corvus corax. For the German music band Corvus Corax, see Corvus Corax (band). The Common Raven (Corvus corax) is a large black bird in the crow family, with iridescent feathers. The bill is large and slightly curved. At maturity, it is between 60 and 78 cm (24 to 27 inches) in length, with a wingspan double that. Apart from its greater size, the Raven differs from its cousins the crows by having a larger and heavier beak, and a deeper and more varied b ...

Including:

• Common Raven - Overview
• Common Raven - Ravens in legend and literature
• Common Raven - Related species

Read more here: » Common Raven: Encyclopedia - Common Raven

Centuries: 4th century BC - 3rd century BC - 2nd century BC Decades: 320s BC 310s BC 300s BC 290s BC 280s BC 270s BC 260s BC 250s BC 240s BC 230s BC 220s BC Years: 280 BC 279 BC 278 BC 277 BC 276 BC - 275 BC - 274 BC 273 BC 272 BC 271 BC 270 BC 275 BC - Events. The inhabitants of Babylon are moved elsewhere. End of the city. Battle of Beneventum: the Romans under Manius Curius Dentatus finally defeat Pyrrhus. The Romans were at first threw back near their c ...

Including:

• 275 BC - Events
• 275 BC - Births
• 275 BC - Deaths

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Centuries: 4th century BC - 3rd century BC - 2nd century BC Decades: 320s BC 310s BC 300s BC 290s BC 280s BC 270s BC 260s BC 250s BC 240s BC 230s BC 220s BC Years: 277 BC 276 BC 275 BC 274 BC 273 BC 272 BC 271 BC 270 BC Events Pyrrhus of Epirus is killed in a street fight in Argos. Alexander II becomes king of Epirus Fall of Tarentum to the Romans. Bindusara sends Mauryan army to conquer the Tamil countries. Kadamba is conquered. Births Deaths

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Centuries: 4th century BC - 3rd century BC - 2nd century BC Decades: 310s BC 300s BC 290s BC 280s BC 270s BC - 260s BC - 250s BC 240s BC 230s BC 220s BC 210s BC Years: 270 BC 269 BC 268 BC 267 BC 266 BC - 265 BC - 264 BC 263 BC 262 BC 261 BC 260 BC 265 BC - Events. Archimedes, Greek mathematician, develops screw, specific gravity Velzna, the last Etruscan city subdued by the Roman Republic Acrotatus succeeds his father Areus I as king of SpartaIncluding:

• 265 BC - Events
• 265 BC - Births
• 265 BC - Deaths

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Centuries: 4th century BC - 3rd century BC - 2nd century BC Decades: 320s BC 310s BC 300s BC 290s BC 280s BC - 270s BC - 260s BC 250s BC 240s BC 230s BC 220s BC 278 BC 277 BC 276 BC 275 BC 274 BC - 273 BC - 272 BC 271 BC 270 BC 269 BC 268 BC Births Deaths Events Categories: Incomplete lists | 270s BC ...

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Centuries: 4th century BC - 3rd century BC - 2nd century BC Decades: 310s BC 300s BC 290s BC 280s BC 270s BC - 260s BC - 250s BC 240s BC 230s BC 220s BC 210s BC 271 BC 270 BC 269 BC 268 BC 267 BC 266 BC - 265 BC 264 BC 263 BC 262 BC 261 BC Births Deaths Mithridates I of Pontus (Founder of the Kingdom of Pontus) Events ...

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A water clock or clepsydra is a device for measuring time by letting water regularly flow out of a container, usually through a tiny aperture. While never reaching the level of accuracy based on today's standards of timekeeping, the water clock was the most accurate and commonly used timekeeping device for millennia, until it was replaced by the more accurate pendulum clock in the 17th century. According to researcher Jim Maciejewski, water clocks were among the earliest timekeepers created by mankind. While there is no ...

See also:

Water clock, Water clock - Water Clock Overview, Water clock - Su Song's Astronomical Clock Tower, Water clock - Water Clock-related Reading List

Read more here: » Water clock: Encyclopedia II - Water clock - Water Clock Overview

Alexander the Great - The defeat of the Persian Empire. Alexander's army had crossed the Hellespont with about 42,000 soldiers---primarily Macedonians1 and Greeks, but also including some Thracians, Paionians and Illyrians. After an initial victory against Persian forces at the Battle of Granicus, Alexander accepted the surrender of the Persian provincial capital and treasury of Sardis and proceeded down the Ionian coast. At Halicarnassus, Alexander successfully waged the fi ...

See also:

Alexander the Great, Alexander the Great - Early life, Alexander the Great - The ascent of Macedon, Alexander the Great - Period of conquests, Alexander the Great - The defeat of the Persian Empire, Alexander the Great - The invasion of India, Alexander the Great - After India, Alexander the Great - Alexander's marriages and sexuality, Alexander the Great - The army of Alexander the Great before the Battle of Gaugamela, Alexander the Great - Infantry, Alexander the Great - Cavalry, Alexander the Great - Death, Alexander the Great - Legacy and division of the empire, Alexander the Great - Timeline, Alexander the Great - Alexander's character, Alexander the Great - Stories and legends, Alexander the Great - Ancient sources, Alexander the Great - Alexander's legend, Alexander the Great - Alexander's legend in non-Western sources, Alexander the Great - Main towns founded by Alexander, Alexander the Great - Alexander in popular media, Alexander the Great - Note

Read more here: » Alexander the Great: Encyclopedia II - Alexander the Great - Period of conquests

Alexander the Great - The defeat of the Persian Empire. Alexander's army had crossed the Hellespont with about 40,000 soldiers---primarily Macedonians [1] and Greeks, but also including some Thracians, Paionians and Illyrians. After an initial victory against Persian forces at the Battle of Granicus, Alexander accepted the surrender of the Persian provincial capital and treasury of Sardis and proceeded down the Ionian coast. At H ...

See also:

Alexander the Great, Alexander the Great - Early life, Alexander the Great - The ascent of Macedon, Alexander the Great - Period of conquests, Alexander the Great - The defeat of the Persian Empire, Alexander the Great - The invasion of India, Alexander the Great - After India, Alexander the Great - Alexander's marriages and sexuality, Alexander the Great - The army of Alexander the Great before the Battle of Gaugamela, Alexander the Great - Infantry, Alexander the Great - Cavalry, Alexander the Great - Death, Alexander the Great - Legacy and division of the empire, Alexander the Great - Timeline, Alexander the Great - Alexander's character, Alexander the Great - Stories and legends, Alexander the Great - Ancient sources, Alexander the Great - Alexander's legend, Alexander the Great - Alexander's legend in non-Western sources, Alexander the Great - Main towns founded by Alexander, Alexander the Great - Alexander in popular media, Alexander the Great - Note

Read more here: » Alexander the Great: Encyclopedia II - Alexander the Great - Period of conquests

Arriving at Antioch from the west, visitors can see the Fortifications and structures of various periods. Architectural fragments of the City Gate by the main street are awaiting re-erection. The road through the gate passes the ruins of the Waterfall and turns to the right at the beginning of the Decumanus Maximus, which has been excavated recently. In this street, one can see the damaged drainage system and wear from the wheels of vehicles, and after passing the Theatre, one turns left i ...

See also:

Antioch Pisidia, Antioch Pisidia - Geography, Antioch Pisidia - History of Antioch, Antioch Pisidia - Prehistory, Antioch Pisidia - Hellenistic age, Antioch Pisidia - Roman period, Antioch Pisidia - Early Christian-Byzantine period, Antioch Pisidia - Archaeology, Antioch Pisidia - Acropolis and fortifications, Antioch Pisidia - City plan, Antioch Pisidia - Tour of Antioch, Antioch Pisidia - City gate, Antioch Pisidia - The waterfall, Antioch Pisidia - The theatre, Antioch Pisidia - Central church, Antioch Pisidia - Tiberia platea-Tiberius square, Antioch Pisidia - Propylon, Antioch Pisidia - Augusteum imperial sanctuary, Antioch Pisidia - Nympheum and water supply system, Antioch Pisidia - The bath, Antioch Pisidia - Stadium, Antioch Pisidia - The great basilica, Antioch Pisidia - The sanctuary of Men Askaenos, Antioch Pisidia - Yalvaç museum, Antioch Pisidia - The Pre-History Hall, Antioch Pisidia - The Classical Hall, Antioch Pisidia - Ethnographic Hall, Antioch Pisidia - The Garden

Read more here: » Antioch Pisidia: Encyclopedia II - Antioch Pisidia - Tour of Antioch

To anyone who stands and looks at the sky, it seems clear that the earth stays in one place while everything in the sky goes around once every day. Observing over a longer time, one sees more complicated movements. The Sun makes a slower circle over the course of a year; the planets have similar motions, but they sometimes turn around and move in the reverse direction for a while (retrograde motion). As these motions became better understood, they required more and more elaborate descriptions, the most famous of which ...

See also:

Heliocentrism, Heliocentrism - Development of the idea, Heliocentrism - Religious disputes over heliocentrism, Heliocentrism - The view of modern science, Heliocentrism - Modern use of geocentric and heliocentric

Read more here: » Heliocentrism: Encyclopedia II - Heliocentrism - Development of the idea

Alexander the Great - The defeat of the Persian Empire. Alexander's army had crossed the Hellespont with about 42,000 soldiers---primarily Macedonians1 and Greeks, but also including some Thracians, Paionians and Illyrians. After an initial victory against Persian forces at the Battle of Granicus, Alexander accepted the surrender of the Persian provincial capital and treasury of Sardis and proceeded down the Ionian coast. At Halicarnassus, Alexander successfully waged the fi ...

See also:

Alexander the Great, Alexander the Great - Early life, Alexander the Great - The ascent of Macedonia, Alexander the Great - Period of conquests, Alexander the Great - The defeat of the Persian Empire, Alexander the Great - The invasion of India, Alexander the Great - After India, Alexander the Great - Alexander's marriages and sexuality, Alexander the Great - The army of Alexander the Great before the Battle of Gaugamela, Alexander the Great - Infantry, Alexander the Great - Cavalry, Alexander the Great - Death, Alexander the Great - Legacy and division of the empire, Alexander the Great - Timeline, Alexander the Great - Alexander's character, Alexander the Great - Stories and legends, Alexander the Great - Ancient sources, Alexander the Great - Alexander's legend, Alexander the Great - Alexander's legend in non-Western sources, Alexander the Great - Main towns founded by Alexander, Alexander the Great - Alexander in popular media, Alexander the Great - Note

Read more here: » Alexander the Great: Encyclopedia II - Alexander the Great - Period of conquests

The Mamertine presence did not go unnoticed forever. In around 270 BC, the Mamertine exploits came to the attention of Syracuse, by word of the refugees from the tormented settlements. Hiero II of Syracuse began to gather an army of citizens with which to rid the land of the destroyers of the peace and rescue his Greek kinsmen. Hiero met with the Mamertines when they were nearing Syracuse. Marching out his troops he first sent his unruly mercenaries forward and allowed them to be butchered by the Mamertines. Since the faithless part o ...

See also:

Mamertines, Mamertines - Capture of Messana, Mamertines - Mamertine dominion over north-eastern Sicily, Mamertines - The decline of the Mamertines, Mamertines - Legacy of the Mamertines

Read more here: » Mamertines: Encyclopedia II - Mamertines - The decline of the Mamertines

Alexander was a legend in his own time. His court historian Callisthenes portrayed the sea in Cilicia as drawing back from him in proskynesis. Writing after Alexander's death, another participant, Onesicritus, went so far as to invent a tryst between Alexander and Thalestris, queen of the mythical Amazons. When Onesicritus read this passage to his patron, Alexander's general and later King Lysimachus, Lysimac ...

See also:

Alexander the Great, Alexander the Great - Early life, Alexander the Great - The ascent of Macedonia, Alexander the Great - Period of conquests, Alexander the Great - The defeat of the Persian Empire, Alexander the Great - The invasion of India, Alexander the Great - After India, Alexander the Great - Alexander's marriages and sexuality, Alexander the Great - The army of Alexander the Great before the Battle of Gaugamela, Alexander the Great - Infantry, Alexander the Great - Cavalry, Alexander the Great - Death, Alexander the Great - Legacy and division of the empire, Alexander the Great - Timeline, Alexander the Great - Alexander's character, Alexander the Great - Stories and legends, Alexander the Great - Ancient sources, Alexander the Great - Alexander's legend, Alexander the Great - Alexander's legend in non-Western sources, Alexander the Great - Main towns founded by Alexander, Alexander the Great - Alexander in popular media, Alexander the Great - Note

Read more here: » Alexander the Great: Encyclopedia II - Alexander the Great - Alexander's legend