__NOTOC__ Year 320 BC was a year of the pre-Julian Roman calendar. At the time, it was known as the Year of the Consulship of Cursor and Philo (or, less frequently, year 434 '' Ab urbe condita''). The denomination 320 BC for this year has been used since the early medieval period, when the

Anno Domini The terms (AD) and before Christ (BC) are used to label or number years in the Julian and Gregorian calendars. The term is Medieval Latin and means 'in the year of the Lord', but is often presented using "our Lord" instead of "the Lord", ...

calendar era A calendar era is the period of time elapsed since one '' epoch'' of a calendar and, if it exists, before the next one. For example, it is the year as per the Gregorian calendar, which numbers its years in the Western Christian era (the Copti ...

became the prevalent method in Europe for naming years.

Events

By place

Macedonian Empire

Alexander the Great Alexander III of Macedon ( grc, Ἀλέξανδρος, Alexandros; 20/21 July 356 BC – 10/11 June 323 BC), commonly known as Alexander the Great, was a king of the ancient Greek kingdom of Macedon. He succeeded his father Philip II to ...

's various generals control different parts of Alexander's empire.

Ptolemy Claudius Ptolemy (; grc-gre, Πτολεμαῖος, ; la, Claudius Ptolemaeus; AD) was a mathematician, astronomer, astrologer, geographer, and music theorist, who wrote about a dozen scientific treatises, three of which were of importance ...

controls Egypt, Seleucus controls Babylon and Syria, Antipater and his son

Cassander Cassander ( el, Κάσσανδρος ; c. 355 BC – 297 BC) was king of the Ancient Greek kingdom of Macedonia from 305 BC until 297 BC, and ''de facto'' ruler of southern Greece from 317 BC until his death. A son of Antipater and a conte ...

control

Macedon Macedonia (; grc-gre, Μακεδονία), also called Macedon (), was an Classical antiquity, ancient monarchy, kingdom on the periphery of Archaic Greece, Archaic and Classical Greece, and later the dominant state of Hellenistic Greece. Th ...

and

Greece Greece,, or , romanized: ', officially the Hellenic Republic, is a country in Southeast Europe. It is situated on the southern tip of the Balkans, and is located at the crossroads of Europe, Asia, and Africa. Greece shares land borders ...

, Antigonus controls Phrygia and other parts of

Asia Minor Anatolia, tr, Anadolu Yarımadası), and the Anatolian plateau, also known as Asia Minor, is a large peninsula in Western Asia and the westernmost protrusion of the Asian continent. It constitutes the major part of modern-day Turkey. The re ...

, Lysimachus controls

Thrace Thrace (; el, Θράκη, Thráki; bg, Тракия, Trakiya; tr, Trakya) or Thrake is a geographical and historical region in Southeast Europe, now split among Bulgaria, Greece, and Turkey, which is bounded by the Balkan Mountains to ...

and

Pergamum Pergamon or Pergamum ( or ; grc-gre, Πέργαμον), also referred to by its modern Greek form Pergamos (), was a rich and powerful ancient Greek city in Mysia. It is located from the modern coastline of the Aegean Sea on a promontory on th ...

and

Eumenes Eumenes (; grc-gre, Εὐμένης; c. 362316 BC) was a Greek general and satrap. He participated in the Wars of Alexander the Great, serving as both Alexander's personal secretary and as a battlefield commander. He later was a participant in t ...

controls the

Cappadocia Cappadocia or Capadocia (; tr, Kapadokya), is a historical region in Central Anatolia, Turkey. It largely is in the provinces Nevşehir, Kayseri, Aksaray, Kırşehir, Sivas and Niğde. According to Herodotus, in the time of the Ionian Re ...

and

Pontus Pontus or Pontos may refer to: * Short Latin name for the Pontus Euxinus, the Greek name for the Black Sea (aka the Euxine sea) * Pontus (mythology), a sea god in Greek mythology * Pontus (region), on the southern coast of the Black Sea, in modern ...

areas. *

Judea Judea or Judaea ( or ; from he, יהודה, Standard ''Yəhūda'', Tiberian ''Yehūḏā''; el, Ἰουδαία, ; la, Iūdaea) is an ancient, historic, Biblical Hebrew, contemporaneous Latin, and the modern-day name of the mountainous sou ...

and Syria are annexed by Ptolemy and he gives Judea a large measure of self-government. * Eudemus makes himself master of the territories of the Indian king

Porus Porus or Poros ( grc, Πῶρος ; 326–321 BC) was an ancient Indian king whose territory spanned the region between the Jhelum River (Hydaspes) and Chenab River (Acesines), in the Punjab region of the Indian subcontinent. He is only ment ...

, and treacherously puts that monarch to death.

By topic

Biology

Theophrastus Theophrastus (; grc-gre, Θεόφραστος ; c. 371c. 287 BC), a Greek philosopher and the successor to Aristotle in the Peripatetic school. He was a native of Eresos in Lesbos.Gavin Hardy and Laurence Totelin, ''Ancient Botany'', Routle ...

begins the systematic study of

botany Botany, also called , plant biology or phytology, is the science of plant life and a branch of biology. A botanist, plant scientist or phytologist is a scientist who specialises in this field. The term "botany" comes from the Ancient Greek w ...

Demography

Alexandria Alexandria ( or ; ar, ٱلْإِسْكَنْدَرِيَّةُ ; grc-gre, Αλεξάνδρεια, Alexándria) is the second largest city in Egypt, and the largest city on the Mediterranean coast. Founded in by Alexander the Great, Alexandri ...

ian

Egypt Egypt ( ar, مصر , ), officially the Arab Republic of Egypt, is a transcontinental country spanning the northeast corner of Africa and southwest corner of Asia via a land bridge formed by the Sinai Peninsula. It is bordered by the Medit ...

becomes the largest city of the world, taking over the lead from Babylon in

ian Babylonia.Geography at about.com
/ref>

Births

* Timocharis of Alexandria, Greek astronomer responsible for the first recorded observation of Mercury and the first star catalogue (d. 260 BC) *

Bindusara Bindusara (), also Amitraghāta or Amitrakhāda (Sanskrit: अमित्रघात, "slayer of enemies" or "devourer of enemies") or Amitrochates (Greek: Ἀμιτροχάτης) (Strabo calls him Allitrochades (Ἀλλιτροχάδης)) ...

, the heir to the throne of the Mauryan Empire, is born. (d. 272 BC)

Deaths

Anaximenes of Lampsacus Anaximenes of Lampsacus (; grc, Ἀναξιμένης ὁ Λαμψακηνός; 320 BC) was a Greek rhetorician and historian. He was one of the teachers of Alexander the Great and accompanied him on his campaigns. Family His father was named Aris ...

, Greek rhetorician and historian (b. c. 380 BC) * Menaechmus, Greek

mathematician A mathematician is someone who uses an extensive knowledge of mathematics in their work, typically to solve mathematical problems. Mathematicians are concerned with numbers, data, quantity, structure, space, models, and change. History On ...

and geometer * Zoilus, Greek grammarian, cynic philosopher and literary critic from

Amphipolis Amphipolis ( ell, Αμφίπολη, translit=Amfipoli; grc, Ἀμφίπολις, translit=Amphipolis) is a municipality in the Serres regional unit, Macedonia, Greece. The seat of the municipality is Rodolivos. It was an important ancient Gr ...

(b. c.

400 BC __NOTOC__ Year 400 BC was a year of the pre-Julian Roman calendar. In the Roman Republic, it was known as the Year of the Tribunate of Esquilinus, Capitolinus, Vulso, Medullinus, Saccus and Vulscus (or, less frequently, year 354 ''Ab urbe c ...

)

References

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