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434 BC
__NOTOC__ Year 434 BC was a year of the pre-Julian Roman calendar. At the time, it was known as the Second year of the Consulship of Iullus and Tricostus or the Year of the Consulship of Capitolinus and Praetextatus and the Year of the Tribunate of Cossus, Praetextatus and Capitolinus (or, less frequently, year 320 ''Ab urbe condita''). The denomination 434 BC for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years. Events By place Greece * Under the leadership of Pericles, Athens introduces a series of measures (the " Megarian decree") imposing an economic embargo on Megara for violations of land sacred to Demeter. According to the provisions of the decree, Megarian merchants are to be excluded from the market of Athens and the ports in its empire. This ban strangles the Megarian economy and strains the fragile peace between Athens and Sparta, which is allied with Megara. * Phi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Roman Calendar
The Roman calendar was the calendar used by the Roman Kingdom and Roman Republic. The term often includes the Julian calendar established by the reforms of the Roman dictator, dictator Julius Caesar and Roman emperor, emperor Augustus in the late 1stcenturyBC and sometimes includes any system dated by inclusive counting towards months' kalends, nones (calendar), nones, and ides (calendar), ides in the Roman manner. The term usually excludes the Alexandrian calendar of Roman Egypt, which continued the unique months of that land's Egyptian calendar, former calendar; the Byzantine calendar of the Byzantine Empire, later Roman Empire, which usually dated the Roman months in the simple count of the ancient Greek calendars; and the Gregorian calendar, which refined the Julian system to bring it into still closer alignment with the tropical year. Roman dates were counted inclusively forward to the next of three principal days: the first of the month (the kalends), a day shortly befor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tribute
A tribute (; from Latin ''tributum'', "contribution") is wealth, often in kind, that a party gives to another as a sign of submission, allegiance or respect. Various ancient states exacted tribute from the rulers of land which the state conquered or otherwise threatened to conquer. In case of alliances, lesser parties may pay tribute to more powerful parties as a sign of allegiance and often in order to finance projects that would benefit both parties. To be called "tribute" a recognition by the payer of political submission to the payee is normally required; the large sums, essentially protection money, paid by the later Roman and Byzantine Empires to barbarian peoples to prevent them attacking imperial territory, would not usually be termed "tribute" as the Empire accepted no inferior political position. Payments ''by'' a superior political entity to an inferior one, made for various purposes, are described by terms including " subsidy". The ancient Persian Achaemenid Empir ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Compasses (drafting)
A compass, more accurately known as a pair of compasses, is a technical drawing instrument that can be used for inscribing circles or Arc (geometry), arcs. As caliper#Divider caliper, dividers, it can also be used as a tool to mark out distances, in particular, on maps. Compasses can be used for mathematics, technical drawing, drafting, navigation and other purposes. Prior to computerization, compasses and other tools for manual drafting were often packaged as a set with interchangeable parts. By the mid-twentieth century, Technical drawing tool#Templates, circle templates supplemented the use of compasses. Today those facilities are more often provided by computer-aided design programs, so the physical tools serve mainly a didactic purpose in teaching geometry, technical drawing, etc. Construction and parts Compasses are usually made of metal or plastic, and consist of two "legs" connected by a hinge which can be adjusted to allow changing of the radius of the circle drawn. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Straightedge
A straightedge or straight edge is a tool used for drawing straight lines, or checking their straightness. If it has equally spaced markings along its length, it is usually called a ruler. Straightedges are used in the automotive service and machining industry to check the flatness of machined mating surfaces. True straightness can in some cases be checked by using a laser line level as an optical straightedge: it can illuminate an accurately straight line on a flat surface such as the edge of a plank or shelf. A pair of straightedges called winding sticks are used in woodworking to make warping easier to perceive in pieces of wood. Three straight edges can be used to test and calibrate themselves to a certain extent, however this procedure does not control twist. For accurate calibration of a straight edge, a surface plate must be used. Compass-and-straightedge construction An idealized straightedge is used in compass-and-straightedge constructions in plane geometry. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Square The Circle
Squaring the circle is a problem in geometry first proposed in Greek mathematics. It is the challenge of constructing a square with the area of a circle by using only a finite number of steps with a compass and straightedge. The difficulty of the problem raised the question of whether specified axioms of Euclidean geometry concerning the existence of lines and circles implied the existence of such a square. In 1882, the task was proven to be impossible, as a consequence of the Lindemann–Weierstrass theorem, which proves that pi (\pi) is a transcendental number. That is, \pi is not the root of any polynomial with rational coefficients. It had been known for decades that the construction would be impossible if \pi were transcendental, but that fact was not proven until 1882. Approximate constructions with any given non-perfect accuracy exist, and many such constructions have been found. Despite the proof that it is impossible, attempts to square the circle have been common ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ionia
Ionia () was an ancient region on the western coast of Anatolia, to the south of present-day Izmir. It consisted of the northernmost territories of the Ionian League of Greek settlements. Never a unified state, it was named after the Ionian tribe who had settled in the region before the Archaic period. Ionia proper comprised a narrow coastal strip from Phocaea in the north near the mouth of the river Hermus (now the Gediz), to Miletus in the south near the mouth of the river Maeander, and included the islands of Chios and Samos. It was bounded by Aeolia to the north, Lydia to the east and Caria to the south. The cities within the region figured large in the strife between the Persian Empire and the Greeks. Ionian cities were identified by mythic traditions of kinship and by their use of the Ionic dialect, but there was a core group of twelve Ionian cities who formed the Ionian League and had a shared sanctuary and festival at Panionion. These twelve cities were (from ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lampsacus
Lampsacus (; grc, Λάμψακος, translit=Lampsakos) was an ancient Greek city strategically located on the eastern side of the Hellespont in the northern Troad. An inhabitant of Lampsacus was called a Lampsacene. The name has been transmitted in the nearby modern town of Lapseki. Ancient history Originally known as Pityusa or Pityussa ( grc, Πιτυούσ(σ)α), it was colonized from Phocaea and Miletus. In the 6th century BC Lampsacus was attacked by Miltiades the Elder and Stesagoras, the Athenian tyrants of the nearby Thracian Chersonese. During the 6th and 5th centuries BC, Lampsacus was successively dominated by Lydia, Persia, Athens, and Sparta. The Greek tyrants Hippoclus and later his son Acantides ruled under Darius I. Artaxerxes I assigned it to Themistocles with the expectation that the city supply the Persian king with its famous wine. When Lampsacus joined the Delian League after the battle of Mycale (479 BC), it paid a tribute of twelve talents, a testimo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Public Speaking
Public speaking, also called oratory or oration, has traditionally meant the act of speaking face to face to a live audience. Today it includes any form of speaking (formally and informally) to an audience, including pre-recorded speech delivered over great distance by means of technology. Confucius, one of many scholars associated with public speaking, once taught that if a speech was considered to be a good speech, it would impact the individuals' lives whether they listened to it directly or not. His idea was that the words and actions of someone of power can influence the world. Public speaking is used for many different purposes, but usually as some mixture of teaching, persuasion, or entertaining. Each of these calls upon slightly different approaches and techniques. Public speaking was developed as a primary sphere of knowledge in Greece and Rome, where prominent thinkers codified it as a central part of rhetoric. Today, the art of public speaking has been transformed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anaxagoras
Anaxagoras (; grc-gre, Ἀναξαγόρας, ''Anaxagóras'', "lord of the assembly"; 500 – 428 BC) was a Pre-Socratic Greek philosopher. Born in Clazomenae at a time when Asia Minor was under the control of the Persian Empire, Anaxagoras came to Athens. According to Diogenes Laërtius and Plutarch, in later life he was charged with impiety and went into exile in Lampsacus; the charges may have been political, owing to his association with Pericles, if they were not fabricated by later ancient biographers. Responding to the claims of Parmenides on the impossibility of change, Anaxagoras introduced the concept of '' Nous'' ( Cosmic Mind) as an ordering force. He also gave a number of novel scientific accounts of natural phenomena, including the notion of panspermia, that life exists throughout the universe and could be distributed everywhere. He deduced a correct explanation for eclipses and described the Sun as a fiery mass larger than the Peloponnese, as we ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Potidaea
__NOTOC__ Potidaea (; grc, Ποτίδαια, ''Potidaia'', also Ποτείδαια, ''Poteidaia'') was a colony founded by the Corinthians around 600 BC in the narrowest point of the peninsula of Pallene, the westernmost of three peninsulas at the southern end of Chalcidice in northern Greece.POTEIDAIA (Nea Poteidaia) Chalkidike, Greece entry in The Princeton Encyclopedia of Classical Sites. History While besieged by the in 479 BC, the town may have been saved by a |
Perdiccas II Of Macedon
Perdiccas II ( gr, Περδίκκας, Perdíkkas) was a king of Macedonia from c. 448 BC to c. 413 BC. During the Peloponnesian War, he frequently switched sides between Sparta and Athens. Family Perdiccas II was the son of Alexander I, he had four brothers, Alcetas II, Philip, Menelaus and Amyntas, and a sister, Stratonice. Alcetas II preceded him on the throne until his murder at the hands of Perdiccas' son Archelaus I resulted in Perdiccas' elevation. Philip was the father of king Amyntas II, while Amyntas' grandson was king Amyntas III. Around 429 - 428 BC, Perdiccas arranged the marriage of his sister Stratonice to Seuthes II of Thrace. Perdiccas II first married a woman called Symache or Simiche. While some consider her a woman of unknown lineage, she was probably part of the Macedonian nobility, other sources call her a slave. By her, he had two sons, Archelaus I and Aeropus II. He later married a woman named Cleopatra, by whom he had another son. Cleopatra's son, acc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ab Urbe Condita
''Ab urbe condita'' ( 'from the founding of the City'), or ''anno urbis conditae'' (; 'in the year since the city's founding'), abbreviated as AUC or AVC, expresses a date in years since 753 BC, the traditional founding of Rome. It is an expression used in antiquity and by classical historians to refer to a given year in Ancient Rome. In reference to the traditional year of the foundation of Rome, the year 1 BC would be written AUC 753, whereas AD 1 would be AUC 754. The foundation of the Roman Empire in 27 BC would be AUC 727. Usage of the term was more common during the Renaissance, when editors sometimes added AUC to Roman manuscripts they published, giving the false impression that the convention was commonly used in antiquity. In reality, the dominant method of identifying years in Roman times was to name the two consuls who held office that year. In late antiquity, regnal years were also in use, as in Roman Egypt during the Diocletian era after AD 293, and in the B ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
