Eponym in the context of Salmonids

Puerto Rico (abbreviated PR), officially the Commonwealth of Puerto Rico, is a self-governing Caribbean archipelago and island organized as an unincorporated territory of the United States under the designation of commonwealth. Located about 1,000 miles (1,600 km) southeast of Miami, Florida, between the Dominican Republic in the Greater Antilles and the U.S. Virgin Islands in the Lesser Antilles, it consists of the eponymous main island and numerous smaller islands, including Vieques, Culebra, and Mona. With approximately 3.2 million residents, it is divided into 78 municipalities, of which the most populous is the capital municipality of San Juan, followed by those within the San Juan metropolitan area. Spanish and English are the official languages of the government, though Spanish predominates.

Puerto Rico was settled by a succession of Amerindian peoples beginning 2,000 to 4,000 years ago; these included the Ortoiroid, Saladoid, and Taíno. It was claimed by Spain following the arrival of Christopher Columbus in 1493 and subsequently colonized by Juan Ponce de León in 1508. Puerto Rico was contested by other European powers into the 18th century but remained a Spanish possession for the next 400 years. The decline of the Indigenous population, followed by an influx of Spanish settlers, primarily from the Canary Islands and Andalusia, and African slaves vastly changed the cultural and demographic landscape of the archipelago. Within the Spanish Empire, Puerto Rico played a secondary but strategically significant role compared to larger and wealthier colonies like Peru and New Spain. By the late 19th century, a distinct Puerto Rican identity began to emerge, centered on a fusion of European, African, and Indigenous elements. In 1898, following the Spanish–American War, Puerto Rico was acquired by the United States.

The geography of Puerto Rico encompasses the geographical features of Puerto Rico, a Caribbean archipelagic and island nation centered around a collective identity based on its land, history, ethnicity, culture, and language, and organized as a self-governing unincorporated territory of the United States. Located between the Greater and Lesser Antilles in the northeastern Caribbean Sea, east of Hispaniola, west of Saint Thomas, north of Venezuela, and south of the Puerto Rico Trench, it consists of the eponymous main island of Puerto Rico and 142 smaller islands, islets, and cays, including San Juan Islet in the north, Vieques and Culebra islands in the Virgin Islands, and Palominos island and Icacos cay in La Cordillera nature reserve in the east, Caja de Muertos island in Caja de Muertos reserve, and Caracoles and Media Luna cays in La Parguera reserve in the south, and Mona, Monito, and Desecheo islands in the Mona Passage in the west.

Measuring 177 km (110 mi; 96 nmi) in length and 65 km (40 mi; 35 nmi) in width with a land area of 8,868 sq km (3,424 sq mi), the main island of Puerto Rico is the 4th largest in the Caribbean, 29th in the Americas, and 81st in the world, making it the 170th largest country or dependency by surface area. With 3.2 million residents, it is also the 4th largest in the Caribbean, 4th in the Americas, and 31st in the world, making it the 136th largest country or dependency by population.

In Greek mythology, Makedon (Ancient Greek: Μακεδών), also spelled Makednos (Μακεδνός) or transcribed Macedon, was the eponymous ancestor of the Makedones (ancient Macedonians) according to various ancient Greek fragmentary narratives. In most versions, he appears as a native or immigrant leader from Epirus, who gave his name to Macedonia, previously called Emathia according to Strabo, which according to Marsyas of Pella was until then a part of Thrace.

In Greek mythology, Argus (/ˈɑːrɡəs/ AR-gəs; Ancient Greek: Ἄργος, romanized: Árgos) was the builder and eponym of the ship Argo, and consequently one of the Argonauts; he was said to have constructed the ship under Athena's guidance. Argus was commissioned to build the Argo by King Pelias (ruler of Iolcus) so that the crew that would come to be known as the Argonauts could find and bring the Golden Fleece back to Iolcus, which was in Thessaly.

In Greek mythology, Myrmidon (/ˈmɜːrmɪdən/ or /ˈmɜːrmɪdɒn/; Ancient Greek: Μυρμιδόνος, Murmidónos) was the eponymous ancestor of the Myrmidons in one version of the myth.

Amphitryon (/æmˈfɪtriən/; Ancient Greek: Ἀμφιτρύων, gen.: Ἀμφιτρύωνος; usually interpreted as "harassing either side", Latin: Amphitruo), in Greek mythology, was a son of Alcaeus, king of Tiryns in Argolis. His mother was named either Astydameia, the daughter of Pelops and Hippodamia, or Laonome, daughter of Guneus, or else Hipponome, daughter of Menoeceus. Amphitryon was the brother of Anaxo (wife of Electryon), and Perimede, wife of Licymnius. He was a husband of Alcmene, Electryon's daughter, and stepfather of the Greek hero Heracles.

Oaxaca de Juárez (Spanish pronunciation: [waˈxaka ðe ˈxwaɾes]), or simply Oaxaca (Valley Zapotec: Ndua), is the capital and largest city of the eponymous Mexican state of Oaxaca. It is the municipal seat for the surrounding municipality of Oaxaca, the most populous municipality in Oaxaca, and the fourth most densely populated municipality in Oaxaca, only being less densely populated than San Jacinto Amilpas, Santa Lucía del Camino, and Santa Cruz Amilpas. It is in the Centro District in the Central Valleys region of the state, in the foothills of the Sierra Madre at the base of the Cerro del Fortín, extending to the banks of the Atoyac River.

Heritage tourism is an important part of the city's economy, and it includes numerous colonial-era structures, significant archeological sites, and elements of the continuing native Zapotec and Mixtec cultures. The city, together with the nearby archeological site of Monte Albán, was designated in 1987 as a UNESCO World Heritage Site. It is the site of the month-long cultural festival called the "Guelaguetza", which features Oaxacan dance from the seven regions, music, and a beauty pageant for indigenous women.

In Greek mythology, Pallas (/ˈpæləs/; Ancient Greek: Πάλλας) was an Arcadian prince and the eponymous founder of the Arcadian town of Pallantion. He was the teacher of Athena, who, according to local myths, was born in Aliphera.

Caguas (Spanish pronunciation: [ˈkaɣwas], locally [ˈkawaʔ]) is a city and municipality in central eastern Puerto Rico. Located in the eponymous Caguas Valley between the Sierra de Cayey and Sierra de Luquillo of the Central Mountain Range, it is bordered by San Juan and Trujillo Alto to the north, Gurabo and San Lorenzo to the west, Aguas Buenas, Cidra and Cayey to the east, and Patillas to the south. With a population of 127,244 as of the 2020 census, Caguas is the fifth most populated municipality in the archipelago and island and a principal city of the San Juan metropolitan area.

Since 2009, Caguas is the only municipality in Puerto Rico recognized as a Tree City USA by the Arbor Day Foundation.

Vukan I (Serbian: Вукан, Greek: Βολκάνος; c. 1050 – 1112) was the Grand Prince of Serbia from 1083 until he died in 1112. During their first years he ruled together with his brother Marko. With the death of his uncle, King Constantine Bodin of Duklja in 1101, he became the most powerful ruler among Serbian princes. He defeated the Byzantines several times, conquering parts of northern Macedonia. He is the eponymous founder of the Vukanović dynasty.

Vlastimir (Serbian Cyrillic: Властимир, Greek: Βλαστίμηρος; c. 805 – 851) was the prince of Serbia from c. 830 until c. 851. Little is known of his reign. He held Serbia during the growing threat posed by the neighbouring, hitherto peaceful, First Bulgarian Empire, which had expanded significantly toward Serbia.

At the time, the Bulgarian Empire and the Byzantine Empire were at peace by treaty, and although the Byzantine Emperor was overlord of the Serb lands, he was unable to aid the Serbs in a potential war. Presian I of Bulgaria eventually invaded Serbia, resulting in a three-year-war, in which the Bulgarian army was devastated and driven out. Vlastimir then turned to the west, expanding well into the hinterland of Dalmatia. He is the eponymous founder of the Vlastimirović dynasty, the first Serbian dynasty.

In Greek mythology, Phoenix or Phoinix (Ancient Greek: Φοῖνιξ Phoinix, gen.: Φοίνικος means "sun-red") was the eponym of Phoenicia who together with his brothers were tasked to find their abducted sister Europa.

Alp Arslan (Persian: آلپ ارسلان; full name: Muhammad Alp Arslan bin Dawud Chaghri), was the second sultan of the Seljuk Empire and great-grandson of Seljuk, the eponymous founder of the dynasty and the empire. He reigned from 1063 until his assassination in 1072.

Alp Arsan greatly expanded Seljuk territories and consolidated his power, defeating rivals to the south, east, and northwest. His victory over the Byzantines at the Battle of Manzikert in 1071 ushered in the Turkoman settlement of Anatolia. For his military achievements, he earned the name Alp Arslan, which means "Heroic Lion" in Turkish.

Italus or Italos (from Ancient Greek: Ἰταλός) was a legendary king of the Oenotrians, ancient people of Italic origin who inhabited the region now called Calabria, in southern Italy. In his Fabularum Liber (or Fabulae), Gaius Julius Hyginus recorded the myth that Italus was a son of Penelope and Telegonus (a son of Odysseus by Circe).

According to Aristotle (Politics) and Thucydides (History of the Peloponnesian War), Italus was the eponym of Italy (Italia). Aristotle, writing in the 4th century BCE, relates that, according to tradition, Italus converted the Oenotrians from a pastoral society to an agricultural one and gave them various ordinances, being the first to institute their system of common meals.

In Greek mythology, Aiolos, transcribed as Aeolus (/ˈiːələs/; Ancient Greek: Αἴολος [ǎi̯.olos]; Modern Greek: Αίολος [ˈe.olos] ) refers to three characters. These three are often difficult to tell apart, and even the ancient mythographers appear to have been perplexed about which Aeolus was which. Diodorus Siculus made an attempt to define each of these three (although it is clear that he also became muddled), and his opinion is followed here.

• The first Aeolus was a son of Hellen and the eponymous founder of the Aeolian race.
• The second Aeolus was a son of Poseidon, who led a colony to islands in the Tyrrhenian Sea.
• The third Aeolus was a son of Hippotes who is mentioned in the Odyssey and the Aeneid as the ruler of the winds.

All three men named Aeolus appear to be connected genealogically, although the precise relationship, especially regarding the second and third Aeolus, is often ambiguous as their identities seem to have been merged by many ancient writers.

Jean-Martin Charcot (French: [ʒɑ̃ maʁtɛ̃ ʃaʁko]; 29 November 1825 – 16 August 1893) was a French neurologist and professor of anatomical pathology. He worked on groundbreaking work about hypnosis and hysteria, in particular with his hysteria patient Louise Augustine Gleizes. Charcot is known as "the founder of modern neurology", and his name has been associated with at least 15 medical eponyms, including various conditions sometimes referred to as Charcot diseases.

Charcot has been referred to as "the father of French neurology and one of the world's pioneers of neurology". His work greatly influenced the developing fields of neurology and psychology; modern psychiatry owes much to the work of Charcot and his direct followers. He was the "foremost neurologist of late nineteenth-century France" and has been called "the Napoleon of the neuroses".

Menelaus (/ˌmɛnɪˈleɪəs/; Ancient Greek: Μενέλαος, Menelaos), son of Lagus and brother of Ptolemy I Soter (ruler of Egypt), served as priest of the eponymous state cult of Alexander, and for a time was king in Cyprus, under his brother.

His name does not occur among the officers or generals of Alexander the Great (336–323 BC) during Alexander's lifetime, though it is incidentally mentioned by Phylarchus in terms that would seem to imply that he then already occupied a distinguished position. The earliest he appears in history is 315 BC, when he was appointed by his brother to the chief command of the forces dispatched to Cyprus, where they were destined to co-operate with the fleet of Seleucus, and with Nicocreon, king of Salamis. By their combined efforts, they soon subjugated all cities on Cyprus, with the exception of Kition; and that also, it would appear, must have ultimately submitted. Menelaus remained on the island, which he governed with almost absolute authority, the petty princes of the several cities being deposed, imprisoned, or assassinated at the slightest sign of disaffection.

Judah (Hebrew: יְהוּדָה‎, Modern: Yəhūda, Tiberian: Yŭhūḏā) was, according to the Book of Genesis, the fourth of the six sons of Jacob and Leah and the founder of the Tribe of Judah of the Israelites. By extension, he is indirectly the eponym of the Kingdom of Judah, the land of Judea, and the word Jew.

According to the narrative in Genesis, Judah alongside Tamar is a patrilineal ancestor of the Davidic line. The Tribe of Judah features prominently in Deuteronomistic history, which most scholars agree was reduced to written form, although subject to exilic and post-exilic alterations and emendations, during the reign of the Judahist reformer Josiah from 641 to 609 BCE.