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Year 1398 ( MCCCXCVIII) was a common year starting on Tuesday (link will display the full calendar) of the
Julian calendar The Julian calendar, proposed by Roman consul Julius Caesar in 46 BC, was a reform of the Roman calendar. It took effect on , by edict. It was designed with the aid of Greek mathematicians and astronomers such as Sosigenes of Alexandr ...
.


Events


January–December

*
March 15 Events Pre-1600 *474 BC – Roman consul Aulus Manlius Vulso celebrates an ovation for concluding the war against Veii and securing a forty years' truce. * 44 BC – The assassination of Julius Caesar takes place. * 493 – Odo ...
Trần Thuận Tông is forced to abdicate as ruler of the
Trần Dynasty The Trần dynasty, ( Vietnamese: Nhà Trần, chữ Nôm: 茹陳)also known as the House of Trần, was a Vietnamese dynasty that ruled over the Kingdom of Đại Việt from 1225 to 1400. The dynasty was founded when emperor Trần Thá ...
in modern-day
Vietnam Vietnam or Viet Nam ( vi, Việt Nam, ), officially the Socialist Republic of Vietnam,., group="n" is a country in Southeast Asia, at the eastern edge of mainland Southeast Asia, with an area of and population of 96 million, making i ...
, in favour of his three-year-old son Trần Thiếu Đế. *
April April is the fourth month of the year in the Gregorian and Julian calendars. It is the first of four months to have a length of 30 days, and the second of five months to have a length of less than 31 days. April is commonly associated with ...
- May – The Bosnian nobility dethrone Queen Helen and replace her with
Stephen Stephen or Steven is a common English first name. It is particularly significant to Christians, as it belonged to Saint Stephen ( grc-gre, Στέφανος ), an early disciple and deacon who, according to the Book of Acts, was stoned to death; ...
Ostoja. *
June 25 Events Pre-1600 * 524 – The Franks are defeated by the Burgundians in the Battle of Vézeronce. * 841 – In the Battle of Fontenay-en-Puisaye, forces led by Charles the Bald and Louis the German defeat the armies of Lothair I of ...
Jianwen succeeds his grandfather,
Hongwu Hongwu () (23 January 1368 – 5 February 1399) was the era name of the Hongwu Emperor, the founder of the Ming dynasty of China. Hongwu was also the Ming dynasty's first era name. Comparison table Other eras contemporaneous with Hongwu * C ...
, as
Emperor An emperor (from la, imperator, via fro, empereor) is a monarch, and usually the sovereignty, sovereign ruler of an empire or another type of imperial realm. Empress, the female equivalent, may indicate an emperor's wife (empress consort), ...
of
Ming Dynasty The Ming dynasty (), officially the Great Ming, was an imperial dynasty of China, ruling from 1368 to 1644 following the collapse of the Mongol-led Yuan dynasty. The Ming dynasty was the last orthodox dynasty of China ruled by the Han peo ...
China. *
July July is the seventh month of the year in the Julian and Gregorian calendars and is the fourth of seven months to have a length of 31 days. It was named by the Roman Senate in honour of Roman general Julius Caesar in 44 B.C., it being the mont ...
– The
Stecknitz Canal The Stecknitz Canal (german: Stecknitzfahrt) was an artificial waterway in northern Germany which connected Lauenburg and Lübeck on the Old Salt Route by linking the tiny rivers Stecknitz (a tributary of the Trave) and Delvenau (a tributary o ...
is completed between the rivers
Elbe The Elbe (; cs, Labe ; nds, Ilv or ''Elv''; Upper and dsb, Łobjo) is one of the major rivers of Central Europe. It rises in the Giant Mountains of the northern Czech Republic before traversing much of Bohemia (western half of the Czech Re ...
and
Trave The Trave () is a river in Schleswig-Holstein, Germany. It is approximately long, running from its source near the village of Gießelrade in Ostholstein to Travemünde, where it flows into the Baltic Sea. It passes through Bad Segeberg, Bad Old ...
(at
Lübeck Lübeck (; Low German also ), officially the Hanseatic City of Lübeck (german: Hansestadt Lübeck), is a city in Northern Germany. With around 217,000 inhabitants, Lübeck is the second-largest city on the German Baltic coast and in the state ...
) in modern-day north
Germany Germany,, officially the Federal Republic of Germany, is a country in Central Europe. It is the second most populous country in Europe after Russia, and the most populous member state of the European Union. Germany is situated betwe ...
, one of the earliest navigable
summit level canal A summit-level canal is an artificial waterway connecting two separate river valleys. The term refers to a canal that rises to cross a summit then falls down the other side. The summit pound is a level stretch of water at the highest part of the ...
s in the world. *
September September is the ninth month of the year in both the Julian and Gregorian calendars, the third of four months to have a length of 30 days, and the fourth of five months to have a length of fewer than 31 days. September in the Northern H ...
**King Richard II of England exiles his cousin Henry Bolingbroke (the future Henry IV of England) for 10 years, in order to end Henry's feud with
Thomas de Mowbray, 1st Duke of Norfolk Thomas de Mowbray, 1st Duke of Norfolk, KG (22 March 136622 September 1399) was an English peer. As a result of his involvement in the power struggles which led up to the fall of King Richard II, he was banished and died in exile in Venice. B ...
, who is also exiled. **As
France France (), officially the French Republic ( ), is a country primarily located in Western Europe. It also comprises of overseas regions and territories in the Americas and the Atlantic, Pacific and Indian Oceans. Its metropolitan area ...
withdraws its support for
Antipope Benedict XIII Pedro Martínez de Luna y Pérez de Gotor (25 November 1328 – 23 May 1423), known as in Spanish and Pope Luna in English, was an Aragonese nobleman who, as Benedict XIII, is considered an antipope (see Western Schism) by the Catholic Church ...
, an army led by Geoffrey Boucicaut occupies Avignon, and starts a five-year siege of the papal palace. *
October 12 Events Pre-1600 * 539 BC – The army of Cyrus the Great of Persia takes Babylon, ending the Babylonian empire. (Julian calendar) * 633 – Battle of Hatfield Chase: King Edwin of Northumbria is defeated and killed by an alliance u ...
– The
Treaty of Salynas The Treaty of Salynas (german: Frieden von Sallinwerder, lt, Salyno sutartis) was a peace treaty signed on 12 October 1398 by Vytautas the Great, the Grand Duke of Lithuania, and Konrad von Jungingen, the Grand Master of the Teutonic Knights. ...
is signed by
Vytautas Vytautas (c. 135027 October 1430), also known as Vytautas the Great ( Lithuanian: ', be, Вітаўт, ''Vitaŭt'', pl, Witold Kiejstutowicz, ''Witold Aleksander'' or ''Witold Wielki'' Ruthenian: ''Vitovt'', Latin: ''Alexander Vitoldus'', O ...
,
Grand Duke of Lithuania The monarchy of Lithuania concerned the monarchical head of state of Kingdom of Lithuania, Lithuania, which was established as an Absolute monarchy, absolute and hereditary monarchy. Throughout Lithuania's history there were three Duke, ducal D ...
, and Konrad von Jungingen,
Grand Master of the Teutonic Knights The Grand Master of the Teutonic Order (german: Hochmeister des Deutschen Ordens; la, Magister generalis Ordo Teutonicus) is the supreme head of the Teutonic Order. It is equivalent to the grand master of other military orders and the super ...
, in an attempt to cede
Samogitia Samogitia or Žemaitija ( Samogitian: ''Žemaitėjė''; see below for alternative and historical names) is one of the five cultural regions of Lithuania and formerly one of the two core administrative divisions of the Grand Duchy of Lithuania ...
to the Knights. *
October 14 Events Pre-1600 * 1066 – The Norman conquest of England begins with the Battle of Hastings. * 1322 – Robert the Bruce of Scotland defeats King Edward II of England at the Battle of Old Byland, forcing Edward to accept Scotland's ...
– King
Taejo of Joseon Taejo of Joseon (4 November 1335 – 27 June 1408), born Yi Seong-gye (), was the founder and first ruler of the Joseon dynasty of Korea. After ascending to the throne, he changed his name to Yi Dan (), and reigned from 1392 to 1398. He was ...
abdicates the throne of the
Joseon dynasty Joseon (; ; Middle Korean: 됴ᇢ〯션〮 Dyǒw syéon or 됴ᇢ〯션〯 Dyǒw syěon), officially the Great Joseon (; ), was the last dynastic kingdom of Korea, lasting just over 500 years. It was founded by Yi Seong-gye in July 1392 and r ...
in modern-day
Korea Korea ( ko, 한국, or , ) is a peninsular region in East Asia. Since 1945, it has been divided at or near the 38th parallel, with North Korea (Democratic People's Republic of Korea) comprising its northern half and South Korea (Republic o ...
, following the murder of his heir Yi Bangsuk, during a coup by Yi's older half-brother,
Yi Bang-won Taejong of Joseon (13 June 1367 – 8 June 1422), personal name Yi Bang-won (Korean: 이방원; Hanja: 李芳遠), was the third ruler of the Joseon dynasty of Korea and the father of King Sejong the Great. Before ascending to the throne, he wa ...
, in The First Strife Of Princes. Taejo's eldest son Jeongjong succeeds to the throne. *
November 11 Events Pre-1600 * 308 – At Carnuntum, Emperor ''emeritus'' Diocletian confers with Galerius, ''Augustus'' of the East, and Maximianus, the recently returned former ''Augustus'' of the West, in an attempt to end the civil wars of the ...
Janus succeeds his father,
James I James I may refer to: People *James I of Aragon (1208–1276) *James I of Sicily or James II of Aragon (1267–1327) *James I, Count of La Marche (1319–1362), Count of Ponthieu *James I, Count of Urgell (1321–1347) *James I of Cyprus (1334–13 ...
, as King of
Cyprus Cyprus ; tr, Kıbrıs (), officially the Republic of Cyprus,, , lit: Republic of Cyprus is an island country located south of the Anatolian Peninsula in the eastern Mediterranean Sea. Its continental position is disputed; while it is ge ...
and claimant to the throne of Armenian Cilicia. *
December 17 Events Pre-1600 * 497 BC – The first Saturnalia festival was celebrated in ancient Rome. * 546 – Siege of Rome: The Ostrogoths under king Totila plunder the city, by bribing the Byzantine garrison. * 920 – Romanos I Lekap ...
Timur Timur ; chg, ''Aqsaq Temür'', 'Timur the Lame') or as ''Sahib-i-Qiran'' ( 'Lord of the Auspicious Conjunction'), his epithet. ( chg, ''Temür'', 'Iron'; 9 April 133617–19 February 1405), later Timūr Gurkānī ( chg, ''Temür Kü ...
defeats the last ruler of the Delhi Sultanate, which has been weakened after four years of civil war. Following his victory, Timur's Islamic troops sack the city of
Delhi Delhi, officially the National Capital Territory (NCT) of Delhi, is a city and a union territory of India containing New Delhi, the capital of India. Straddling the Yamuna river, primarily its western or right bank, Delhi shares borders ...
, and proceed to massacre hundreds of thousands of the state's
Hindu Hindus (; ) are people who religiously adhere to Hinduism. Jeffery D. Long (2007), A Vision for Hinduism, IB Tauris, , pages 35–37 Historically, the term has also been used as a geographical, cultural, and later religious identifier for ...
inhabitants.


Date unknown

* The
Teutonic Knights The Order of Brothers of the German House of Saint Mary in Jerusalem, commonly known as the Teutonic Order, is a Catholic religious institution founded as a military society in Acre, Kingdom of Jerusalem. It was formed to aid Christians o ...
recommence their raids of Lithuania. * The Teutonic Knights conquer the island of Gotland, near Sweden, which has previously been run by the piratical
Victual Brothers , native_name_lang = , named_after = french: vitailleurs (provisioners, Hundred Years' War) , image = Vitalienbrueder, Wandmalerei in d, Kirche zu Bunge auf Gotland, gemalt ca. 1405.JPG , image_size = 250px ...
. *
Martin of Aragon Martin the Humane (29 July 1356 – 31 May 1410), also called the Elder and the Ecclesiastic, was King of Aragon, Valencia, Sardinia and Corsica and Count of Barcelona from 1396 and King of Sicily from 1409 (as Martin II). He failed to secure ...
launches a crusade against the
Moors The term Moor, derived from the ancient Mauri, is an exonym first used by Christian Europeans to designate the Muslim inhabitants of the Maghreb, the Iberian Peninsula, Sicily and Malta during the Middle Ages. Moors are not a distinct or ...
in
North Africa North Africa, or Northern Africa is a region encompassing the northern portion of the African continent. There is no singularly accepted scope for the region, and it is sometimes defined as stretching from the Atlantic shores of Mauritania in ...
. * The
Kingdom of Singapura The Kingdom of Singapura ( Malay: ''Kerajaan Singapura'') was an Indianised Malay Hindu-Buddhist kingdom thought to have been established during the early history of Singapore upon its main island Pulau Ujong, then also known as Temasek, fr ...
falls, after being invaded by the Majapahit Empire. * Abdullah succeeds Abu Amir as ruler of the Marinid dynasty in modern-day
Morocco Morocco (),, ) officially the Kingdom of Morocco, is the westernmost country in the Maghreb region of North Africa. It overlooks the Mediterranean Sea to the north and the Atlantic Ocean to the west, and has land borders with Algeria t ...
. * Bunei succeeds his father,
Satto Satto (察度) (1321 – November 17, 1395) was King of Chūzan. He is the first ruler of Okinawa Island who was recorded by contemporary sources. His reign was marked by expansion and development of Chūzan's trade relations with other states, ...
, as King of
Chūzan was one of three kingdoms which controlled Okinawa in the 14th century. Okinawa, previously controlled by a number of local chieftains or lords, loosely bound by a paramount chieftain or king of the entire island, split into these three more so ...
(modern-day central
Okinawa is a prefecture of Japan. Okinawa Prefecture is the southernmost and westernmost prefecture of Japan, has a population of 1,457,162 (as of 2 February 2020) and a geographic area of 2,281 km2 (880 sq mi). Naha is the capital and largest city ...
, Japan). *
Glendalough Glendalough (; ) is a glacial valley in County Wicklow, Ireland, renowned for an Early Medieval monastic settlement founded in the 6th century by St Kevin. From 1825 to 1957, the head of the Glendalough Valley was the site of a galena lead min ...
monastery A monastery is a building or complex of buildings comprising the domestic quarters and workplaces of monastics, monks or nuns, whether living in communities or alone ( hermits). A monastery generally includes a place reserved for prayer whi ...
in
Wicklow Wicklow ( ; ga, Cill Mhantáin , meaning 'church of the toothless one'; non, Víkingaló) is the county town of County Wicklow in Ireland. It is located south of Dublin on the east coast of the island. According to the 2016 census, it has a ...
,
Ireland Ireland ( ; ga, Éire ; Ulster Scots dialect, Ulster-Scots: ) is an island in the Atlantic Ocean, North Atlantic Ocean, in Northwestern Europe, north-western Europe. It is separated from Great Britain to its east by the North Channel (Grea ...
is destroyed by
English English usually refers to: * English language * English people English may also refer to: Peoples, culture, and language * ''English'', an adjective for something of, from, or related to England ** English national ide ...
troops. *
Ferapontov Monastery The Ferapontov convent (russian: Ферапонтов монастырь), in the Vologda region of Russia, is considered one of the purest examples of Russian medieval art, a reason given by UNESCO for its inscription on the World Heritage List ...
is founded in modern-day northwest
Russia Russia (, , ), or the Russian Federation, is a transcontinental country spanning Eastern Europe and Northern Asia. It is the largest country in the world, with its internationally recognised territory covering , and encompassing one-eig ...
by Therapont of Belozersk. * The
Munmyo Munmyo (more specifically Seoul Munmyo or Seonggyungwan Munmyo) is Korea's primary temple of Confucius ("munmyo" is also the general Korean term for a temple of Confucius). It is located in central Seoul, South Korea, on the campus of Sungkyunkwa ...
Confucian Confucianism, also known as Ruism or Ru classicism, is a system of thought and behavior originating in ancient China. Variously described as tradition, a philosophy, a religion, a humanistic or rationalistic religion, a way of governing, or ...
shrine and
Sungkyunkwan University Sungkyunkwan University (SKKU or simply ''Seongdae'', Hangul: 성균관대학교; Hanja: 成均館大學校) is a private comprehensive research university in South Korea. The institution traces its origins to the historic Sungkyunkwan, found ...
are founded in modern-day
Seoul Seoul (; ; ), officially known as the Seoul Special City, is the capital and largest metropolis of South Korea.Before 1972, Seoul was the ''de jure'' capital of the Democratic People's Republic of Korea (North Korea) as stated iArticle 103 of ...
. *
Mount Grace Priory Mount Grace Priory is a monastery in the parish of East Harlsey, North Yorkshire, England. Set in woodlands within the North York Moors National Park, it is represented today by the best preserved and most accessible ruins among the nine house ...
is established in
Yorkshire Yorkshire ( ; abbreviated Yorks), formally known as the County of York, is a historic county in northern England and by far the largest in the United Kingdom. Because of its large area in comparison with other English counties, functions have ...
,
England England is a country that is part of the United Kingdom. It shares land borders with Wales to its west and Scotland to its north. The Irish Sea lies northwest and the Celtic Sea to the southwest. It is separated from continental Europe b ...
. * According to fringe theorists, the Scottish explorer
Henry I Sinclair, Earl of Orkney Henry I Sinclair, Earl of Orkney, Lord of Roslin () was a Scottish and a Norwegian nobleman. Sinclair held the title Earl of Orkney (which refers to Norðreyjar rather than just the islands of Orkney) and was Lord High Admiral of Scotland unde ...
, reaches North America.


Births

*
August 19 Events Pre-1600 *295 BC – The first temple to Venus, the Roman goddess of love, beauty and fertility, is dedicated by Quintus Fabius Maximus Gurges during the Third Samnite War. *43 BC – Gaius Julius Caesar Octavianus, later know ...
Íñigo López de Mendoza, 1st Marquis of Santillana, Spanish poet (d.
1458 Year 1458 ( MCDLVIII) was a common year starting on Sunday (link will display the full calendar) of the Julian calendar, the 1458th year of the Common Era (CE) and Anno Domini (AD) designations, the 458th year of the 2nd millennium, the 58th year ...
) * ''date unknown'' **
Cecília Rozgonyi Cecília Rozgonyi (1398– between 1436 and 1439) was a late mediaeval Hungarian noblewoman known for fighting against Ottoman invaders. Her given name also appears as Cecilia, Cicelle, or Cziczelle and her surname as Rozgoni; she is sometim ...
, Hungarian noble and heroine (d.
1434 Year 1434 ( MCDXXXIV) was a common year starting on Friday (link will display the full calendar) of the Julian calendar. Events January–December * April 14 – The foundation stone of Nantes Cathedral in Nantes, France, is laid. ...
) **
Spytek of Melsztyn Spycimir, also Spyćmier, Spyćmir, Spyćmierz, Spićymierz, etc., is an old Polish masculine given name. Etymology: ''spyci-'': "in vain", ''-mir'': "peace". Diminutives: Spytko, Spytek. Its name day is 26 April.Bogdan Kupis, ''Nasze imiona'', 1991 ...
, Polish nobleman (d.
1439 Year 1439 ( MCDXXXIX) was a common year starting on Thursday (link will display the full calendar) of the Julian calendar. Events January–December * May 4 – Battle of Grotnik: Władysław III's royal army defeats the Hussite m ...
) **
Moctezuma I Moctezuma I (–1469), also known as Moteuczomatzin Ilhuicamina (), Huehuemoteuczoma or Montezuma I ( nci, Motēuczōma Ilhuicamīna , nci, Huēhuemotēuczōma ), was the second Aztec emperor and fifth king of Tenochtitlan. During his reign, th ...
, second
Aztec The Aztecs () were a Mesoamerican culture that flourished in central Mexico in the post-classic period from 1300 to 1521. The Aztec people included different ethnic groups of central Mexico, particularly those groups who spoke the Nahuatl ...
emperor (d.
1469 Year 1469 ( MCDLXIX) was a common year starting on Sunday (link will display the full calendar) of the Julian calendar. Events January–December * February 4 – Battle of Qarabagh: Uzun Hasan decisively defeats the Timurids ...
) **
William Waynflete William Waynflete (11 August 1486), born William Patten, was Provost of Eton College (1442–1447), Bishop of Winchester (1447–1486) and Lord Chancellor of England (1456–1460). He founded Magdalen College, Oxford and three subsidiary scho ...
, English Lord Chancellor and bishop of Winchester (d.
1486 Year 1486 ( MCDLXXXVI) was a common year starting on Sunday (link will display the full Julian calendar for the year). Events January–December * January 18 – King Henry VII of England and Elizabeth of York are married, uniting ...
) ** Johannes Gutenberg, German inventor of the
printing press A printing press is a mechanical device for applying pressure to an inked surface resting upon a print medium (such as paper or cloth), thereby transferring the ink. It marked a dramatic improvement on earlier printing methods in which the ...
** Tlacaélel, Aztec warrior, thinker, high priest and noble for the Mexica Empire (d. 1487)


Deaths

* January 6
Rupert II, Elector Palatine Rupert II, Count Palatine of the Rhine () (12 May 1325, Amberg – 6 January 1398, Amberg). He was the Elector Palatine of the Rhine from the house of Wittelsbach in 1390–1398. Life Rupert was the elder son of Adolf, Count Palatine of the ...
(b. 1325) *
January 31 Events Pre-1600 * 314 – Pope Sylvester I is consecrated, as successor to the late Pope Miltiades. *1208 – The Battle of Lena takes place between King Sverker II of Sweden and his rival, Prince Eric, whose victory puts him on the ...
– Former
Emperor Sukō (May 25, 1334 – January 31, 1398) was the third of Emperors of Northern Court during the Period of the Northern and Southern Courts in Japan. According to pre- Meiji scholars, his reign spanned the years from 1348 through 1351.Titsingh, Isaa ...
of Japan (b. 1334) *
June 24 Events Pre-1600 *1312 BC – Mursili II launches a campaign against the Kingdom of Azzi-Hayasa. * 109 – Roman emperor Trajan inaugurates the Aqua Traiana, an aqueduct that channels water from Lake Bracciano, northwest of Rome. ...
Hongwu Emperor of China (b.
1328 Year 1328 ( MCCCXXVIII) was a leap year starting on Friday (link will display the full calendar) of the Julian calendar. Events * January 24 – Philippa of Hainault marries King Edward III of England a year after his coronation. The ma ...
) *
July 20 Events Pre-1600 * 70 – Siege of Jerusalem: Titus, son of emperor Vespasian, storms the Fortress of Antonia north of the Temple Mount. The Roman army is drawn into street fights with the Zealots. * 792 – Kardam of Bulgaria defea ...
Roger Mortimer, 4th Earl of March Roger de Mortimer, 4th Earl of March, 6th Earl of Ulster (11 April 137420 July 1398) was an English nobleman. He was considered the heir presumptive to King Richard II, his mother's first cousin. Roger Mortimer's father, the 3rd Earl of Marc ...
, heir to the throne of England (b. 1374) * July/August (uncertain) –
Kadi Burhan al-Din Qāżi Aḥmad Borhān al-Din ( tr, Kadı Burhâneddin, 8 January 1345 – 1398; az, Qazi Bürhanəddin) was an Oghuz Turkic vizier to the Eretnid rulers of Anatolia. In 1381 he took over Eretnid lands and claimed the title of sultan for him ...
, poet, kadi, and ruler of
Sivas Sivas (Latin and Greek: ''Sebastia'', ''Sebastea'', Σεβάστεια, Σεβαστή, ) is a city in central Turkey and the seat of Sivas Province. The city, which lies at an elevation of in the broad valley of the Kızılırmak river, is ...
(b.
1345 Year 1345 ( MCCCXLV) was a common year starting on Saturday (link will display the full calendar) of the Julian calendar. It was a year in the 14th century, in the midst of a period in human history often referred to as the Late Middle Ages. Dur ...
) *
September 9 Events Pre-1600 * 337 – Constantine II, Constantius II, and Constans succeed their father Constantine I as co-emperors. The Roman Empire is divided between the three Augusti. *1000 – Battle of Svolder, Viking Age. * 1141 – ...
James I of Cyprus (b. 1334) *
October 5 Events Pre-1600 * 610 – Heraclius arrives at Constantinople, kills Byzantine Emperor Phocas, and becomes emperor. * 816 – King Louis the Pious is crowned emperor of the Holy Roman Empire by the Pope. * 869 – The Fourth Coun ...
Blanche of Navarre, Queen of France (b. 1333) * ''date unknown'' –
Jeong Dojeon Jeong Dojeon (Korean: 정도전, Hanja: 鄭道傳, 1342 – October 6, 1398), also known by his pen name Sambong (Korean: 삼봉), was a prominent Korean scholar-official during the late Goryeo to the early Joseon periods. He served as the first ...
, Korean philosopher


References

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