Thucydides in the context of Sparta

Historical method is the collection of techniques and guidelines that historians use to research and write histories of the past. Secondary sources, primary sources and material evidence such as that derived from archaeology may all be drawn on. The historian's skill lies in identifying these sources, evaluating their relative authority, and combining their testimony appropriately in order to construct an accurate and reliable picture of past events and environments.

In the philosophy of history, the question of the nature, and the possibility, of a sound historical method is raised within the sub-field of epistemology. The study of historical method and of different ways of writing history is known as historiography.

Pericles (/ˈpɛrɪkliːz/ ; Ancient Greek: Περικλῆς; c. 495–429 BC) was a Greek statesman and general during the Golden Age of Athens. He was prominent and influential in Ancient Athenian politics, particularly between the Greco-Persian Wars and the Peloponnesian War, and was acclaimed by Thucydides, a contemporary historian, as "the first citizen of Athens". Pericles turned the Delian League into an Athenian empire and led his countrymen during the first two years of the Peloponnesian War. The period during which he led Athens as its preeminent orator and statesman, roughly from 461 to 429 BC, is sometimes known as the "Age of Pericles", but the period thus denoted can include times as early as the Persian Wars or as late as the following century.

Pericles promoted the arts and literature, and it was principally through his efforts that Athens acquired the reputation of being the educational and cultural center of the ancient Greek world. He started an ambitious project that generated most of the surviving structures on the Acropolis, including the Parthenon. This project beautified and protected the city, exhibited its glory, and gave work to its people. Pericles also fostered Athenian democracy to such an extent that critics called him a populist. Pericles was descended, through his mother, from the powerful and historically influential Alcmaeonid family. He, along with several members of his family, succumbed to the Plague of Athens in 429 BC, which weakened the city-state during a protracted conflict with Sparta.

Corfu (/kɔːrˈf(j)uː/ kor-FOO, -⁠FEW, US also /ˈkɔːrf(j)uː/ KOR-foo, -⁠few) or Kerkyra (Greek: Κέρκυρα, romanized: Kérkyra, pronounced [ˈcercira] ) is one of the Ionian Islands in western Greece, and is separated by the Straits of Corfu from the mainland of Greece and Albania. It is the northernmost island on Greece's west coast except for its satellite Diapontian Islands, which are also the westernmost point of all Greece. Corfu and the Diapontian Islands mark the International Hydrographic Organization border between the Ionian Sea to the south and the Adriatic Sea to the north. Within the Ionian Islands region, the regional unit of Corfu extends as far south as the Paxoi. The capital and largest city of the regional unit is also named Corfu.

The island is bound up with the history of Greece from the beginnings of Greek mythology, and is marked by numerous battles and conquests. Ancient Korkyra took part in the Battle of Sybota which was a catalyst for the Peloponnesian War, and, according to Thucydides, the largest naval battle between Greek city states until that time. Thucydides also reports that Korkyra was one of the three great naval powers of Greece in the fifth century BCE, along with Athens and Corinth. Ruins of ancient Greek temples and other archaeological sites of the ancient city of Korkyra are located in Palaiopolis. Medieval castles punctuating strategic locations across the island are a legacy of struggles in the Middle Ages against invasions by pirates and the Ottomans. Two of these castles enclose its capital, which is the only city in Greece to be surrounded in such a way. As a result, Corfu's capital has been officially declared a kastropolis ("castle city") by the Greek government.

"Pericles's Funeral Oration" is a famous speech from Thucydides's History of the Peloponnesian War. The speech was supposed to have been delivered by Pericles, an eminent Athenian politician, at the end of the first year of the Peloponnesian War (BC 431–404) as a part of the annual public funeral for the war dead.

Ancient Greek literature is literature written in the Ancient Greek language from the earliest texts until the time of the Byzantine Empire. The earliest surviving works of ancient Greek literature, dating back to the early Archaic period, are the two epic poems the Iliad and the Odyssey, set in an idealized archaic past today identified as having some relation to the Mycenaean era. These two epics, along with the Homeric Hymns and the two poems of Hesiod, the Theogony and Works and Days, constituted the major foundations of the Greek literary tradition that would continue into the Classical, Hellenistic, and Roman periods.

The lyric poets Sappho, Alcaeus, and Pindar were highly influential during the early development of the Greek poetic tradition. Aeschylus is the earliest Greek tragic playwright for whom any plays have survived complete. Sophocles is famous for his tragedies about Oedipus, particularly Oedipus the King and Antigone. Euripides is known for his plays which often pushed the boundaries of the tragic genre. The comedic playwright Aristophanes wrote in the genre of Old Comedy, while the later playwright Menander was an early pioneer of New Comedy. The historians Herodotus of Halicarnassus and Thucydides, who both lived during the fifth century BC, wrote accounts of events that happened shortly before and during their own lifetimes. The philosopher Plato wrote dialogues, usually centered around his teacher Socrates, dealing with various philosophical subjects, whereas his student Aristotle wrote numerous treatises, which later became highly influential.

Pythia (/ˈpɪθiə/; Ancient Greek: Πυθία [pyːˈtʰíaː]) was the title of the high priestess of the Temple of Apollo at Delphi in central Greece. She served as its oracle and was known as the Oracle of Delphi. Her title was sometimes historically glossed in English as the Pythoness.

The Pythia was established at the latest in the 8th century BC (though some estimates date the shrine to as early as 1400 BC), and was widely credited for her prophecies uttered under divine possession (enthusiasmos) by Apollo. The Pythian priestess emerged as pre-eminent by the end of the 7th century BC and continued to be consulted until the late 4th century AD. During this period, the Delphic Oracle was the most prestigious and authoritative oracle among the Greeks, and she was among the most powerful women of the classical world. The oracle is one of the best-documented religious institutions of the classical Greeks. Authors who mention the oracle include Aeschylus, Aristotle, Clement of Alexandria, Diodorus, Diogenes, Euripides, Herodotus, Julian, Justin, Livy, Lucan, Nepos, Ovid, Pausanias, Pindar, Plato, Plutarch, Sophocles, Strabo, Thucydides, and Xenophon.

Spartan hegemony was the period of dominance by Sparta in Greek affairs from 404 to 371 BC. Even before this period the polis of Sparta was the greatest military land power of classical Greek antiquity and governed, dominated or influenced the entire Peloponnese. The defeat of the Athenians and the Delian League in the Peloponnesian War in 431–404 BC resulted in a short-lived Spartan dominance of the southern Greek world from 404 to 371 BC. Due to their mistrust of others, Spartans discouraged the creation of records about their internal affairs. The only histories of Sparta are from the writings of Xenophon, Thucydides, Herodotus and Plutarch, none of whom were Spartans. Plutarch was writing several centuries after the period of Spartan hegemony had ceased. This creates difficulties in understanding the Spartan political system, which was distinct from any other Greek polis.

The Alcmaeonidae (/ˌælkmiːˈɒnɪdiː/; Ancient Greek: Ἀλκμαιωνίδαι, Alkmaionidai; Attic: Ἀλκμεωνίδαι, Alkmeonidai) or Alcmaeonids (/ˌælkmiːˈoʊnɪdz/) were a wealthy and powerful noble family of ancient Athens, a branch of the Neleides who claimed descent from the mythological Alcmaeon, the great-grandson of Nestor.

In the 7th to late 5th centuries BC, the Alcmaeonidae played a significant role in the developments and events that occurred in Athens. Such developments included overthrowing an Athenian tyrant, helping to lay the foundations of Athenian democracy, and having generals for Athens during the Peloponnesian War. The Alcmaeonidae were mentioned frequently throughout Herodotus' The Histories, and many played a key role in shaping Athens. The first prominent Alcmaeonid was Megacles, who was exiled from the city and given a curse on him and his family. Furthermore, there was Cleisthenes, who became known as "the father of Athenian democracy" by numerous scholars and historians. Another famous Alcmaeonid was Pericles, whom Thucydides would later call "the first citizen of Athens," as well as Alcibiades, who switched sides numerous times during the Peloponnesian War, and would end up being the last of the notable Alcmaeonidae. The main aristocratic rival of the Alcmaeonidae in the 6th and 5th centuries BC were the Peisistratids.

Isonomia also isonomy (ἰσονομία "equality of political rights," from the Greek ἴσος isos, "equal," and νόμος nomos, "usage, custom, law,") is a word that means equality before the law. It was a word used by ancient Greek writers such as Herodotus and Thucydides to refer to some kind of popular government. It was subsequently eclipsed until brought back into English as isonomy ("equality of law"). Economist Friedrich Hayek attempted to popularize the term in his book The Constitution of Liberty and argued that a better understanding of isonomy, as used by the Greeks, defines the term to mean "the equal application of the laws to all."

The Plague of Athens (Ancient Greek: Λοιμὸς τῶν Ἀθηνῶν, Loimos tôn Athênôn) was an epidemic that devastated the city-state of Athens in ancient Greece during the second year (430 BC) of the Peloponnesian War when an Athenian victory still seemed within reach. The plague killed an estimated 75,000 to 100,000 people, around 25% of the population, and is believed to have entered Athens through Piraeus, the city's port and sole source of food and supplies. Thucydides, an Athenian survivor, wrote that much of the eastern Mediterranean also saw an outbreak of the disease, albeit with less impact.

The war, along with the plague, had lasting effects on Athenian society. Short-term, there was civil disorder, and violations of usual funerary practices. Thucydides describes a decrease in traditional religious practices and increase in superstitious explanations. He estimates that it took 15 years for the Athenian population to recover. Long-term, the high death toll drastically redistributed wealth within Athenian society, and weakened Athens politically.

Nisaea or Nisaia (Ancient Greek: Νίσαια or Νισαία) was the Saronic port town of the ancient polis Megara. In Greek mythology, Nisaea was founded by one of Pandion II's sons, Nisos, who named the region given to him by his father Nisaea, after himself. Control of Nisaea slipped back and forth between Athens and Megara both before and during the Peloponessian War. Athenian allies of the Megarians built long walls which connected Nisaea to Megaris. According to Thucydides, the length of the walls that connected the port to Megara were eight Greek stadia, while Strabo claims the walls to have been 18 stadia in length. A temple of Demeter was located on the road near Nisaea, and a temple of Poseidon located within the port town. Nisaean Megara is thought to have been the birthplace of poet Theognis, but his birthplace is not known for certain The location of the ancient port town remains in debate by historians.

A letter is a written message conveyed from one person (or group of people) to another through a medium. Something epistolary means that it is a form of letter writing. The term usually excludes written material intended to be read in its original form by large numbers of people, such as newspapers and placards, although even these may include material in the form of an "open letter". The typical form of a letter for many centuries, and the archetypal concept even today, is a sheet (or several sheets) of paper that is sent to a correspondent through a postal system. A letter can be formal or informal, depending on its audience and purpose. Besides being a means of communication and a store of information, letter writing has played a role in the reproduction of writing as an art throughout history. Letters have been sent since antiquity and are mentioned in the Iliad. Historians Herodotus and Thucydides mention and use letters in their writings.

The Siceliot people (pl. Siceliots or Siceliotes, Σικελιῶται in Ancient Greek) formed a distinct ethno-cultural group in Sicily from about the 8th century BC until their assimilation into the general Sicilian population. As Hellenic colonists (often reputedly of Doric origin) and descendants of colonists from Greece, they spoke Greek and participated in the wider cultural and political activities of Greek Sicily and of the Hellenic world as a whole. The Athenian historian Thucydides mentions them in various places in his "History of the Peloponnesian War".

The Roman Republic and the Roman Empire continued to see a distinction between the Siceliotes (the descendants of Greek settlers) and the non-Greek inhabitants of Sicily.

International relations (IR, and also referred to as international studies, international politics, or international affairs) is an academic discipline. In a broader sense, the study of IR, in addition to multilateral relations, concerns all activities among states—such as war, diplomacy, trade, and foreign policy—as well as relations with and among other international actors, such as intergovernmental organizations (IGOs), international nongovernmental organizations (INGOs), international legal bodies, and multinational corporations (MNCs).

International relations is generally classified as a major multidiscipline of political science, along with comparative politics, political methodology, political theory, and public administration. It often draws heavily from other fields, including anthropology, economics, geography, history, law, philosophy, and sociology. There are several schools of thought within IR, of which the most prominent are realism, liberalism, and constructivism.

Corcyra (also Korkyra /kɔːrˈsaɪ.rə/; Ancient Greek: Κόρκυρα) was an ancient Greek city on the island of Corfu in the Ionian Sea adjacent to Epirus. It was a colony of Corinth founded in the Archaic period. Corcyra was acting as a port of call on the sailing routes, especially to reach the Italian coast or to venture farther north. According to Thucydides, the earliest recorded naval battle took place between Corcyra and Corinth in the mid-7th century BC, roughly 260 years before he was writing. He also writes that Corcyra was one of the three great naval powers in 5th-century BC Greece, along with Athens and Corinth.

The antagonism between Corcyra and its mother city, Corinth, appears to have been an old one. Quite apart from the naval battle that Thucydides mentions, Herodotus records a myth involving the tyrant of Corinth, Periander. Periander was estranged from his younger son, Lycophron, who believed that his father had killed his mother, Milissa. After failing to reconcile with Lycophron, he sent him to Corcyra, which was within Corinth's governance. In his old age, Periander sent for his son to come and rule over Corinth and suggested that they would trade places and he would rule Corcyra while his son came to rule Corinth. To prevent that, the Corcyraeans killed Lycophron. In punishment, Periander captured 300 young men of Corcyra with the intention of castrating them. That is more likely to be a myth explaining the animosity between Corinth and Corcyra and justifying the use of the word tyrant for Periander's rule than an actual historical event.

Perdiccas I (Greek: Περδίκκας, romanized: Perdíkkas; fl. c. 650 BC) was king of the ancient Greek kingdom of Macedon. By allowing thirty years for the span of an average generation from the beginning of Archelaus' reign in 413 BC, British historian Nicholas Hammond estimated that Perdiccas ruled around 653 BC.

There are two separate historical traditions describing the foundation of the Argead dynasty. The earlier, documented by Herodotus and Thucydides in the fifth century BC, records Perdiccas as the first king of Macedonia. The later tradition first emerged sometime at the beginning of the fourth century BC and claimed that Caranus, rather than Perdiccas, was the founder. Aside from Satyrus, who adds Coenus and Tyrimmas to the list, Marsyas of Pella, Theopompos, and Justin all agree that Caranus was Perdiccas' father. Furthermore, Plutarch claimed in his biography of Alexander the Great that all of his sources agreed that Caranus was the founder. This unhistorical assertion is rejected by modern scholarship as Argead court propaganda, possibly intended to diminish the significance of the name 'Perdiccas' in rival family branches following Amyntas III accession.