324

Millennium:	1st millennium
Centuries:	3rd century 4th century 5th century
Decades:	300s 310s 320s 330s 340s
Years:	321 322 323 324 325 326 327

324 in various calendars

Gregorian calendar	324 CCCXXIV
Ab urbe condita	1077
Assyrian calendar	5074
Balinese saka calendar	245–246
Bengali calendar	−269
Berber calendar	1274
Buddhist calendar	868
Burmese calendar	−314
Byzantine calendar	5832–5833
Chinese calendar	癸未年 (Water Goat) 3021 or 2814     — to — 甲申年 (Wood Monkey) 3022 or 2815
Coptic calendar	40–41
Discordian calendar	1490
Ethiopian calendar	316–317
Hebrew calendar	4084–4085
Hindu calendars
- Vikram Samvat	380–381
- Shaka Samvat	245–246
- Kali Yuga	3424–3425
Holocene calendar	10324
Iranian calendar	298 BP – 297 BP
Islamic calendar	307 BH – 306 BH
Javanese calendar	205–206
Julian calendar	324 CCCXXIV
Korean calendar	2657
Minguo calendar	1588 before ROC 民前1588年
Nanakshahi calendar	−1144
Seleucid era	635/636 AG
Thai solar calendar	866–867
Tibetan calendar	阴水羊年 (female Water-Goat) 450 or 69 or −703     — to — 阳木猴年 (male Wood-Monkey) 451 or 70 or −702

For the number, see 324 (number).

The northern and eastern frontiers of the Roman Empire in the time of Constantine, with the territories acquired in the course of the thirty years of military campaigns between 306 and 337.

Year 324 (CCCXXIV) was a leap year starting on Wednesday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Crispus and Constantinus (or, less frequently, year 1077 Ab urbe condita). The denomination 324 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

Roman Empire

• July 3 – Battle of Adrianople: Emperor Constantine the Great defeats his rival Licinius near Adrianople, forcing him to retreat to Byzantium. He invades Thrace with a Visigothic force and raids the countryside.
• The Civil wars of the Tetrarchy, which began in 306, end with Constantine ruling as sole Emperor.
• July – Battle of the Hellespont: Crispus destroys Licinius' naval fleet in the Dardanelles, allowing his father Constantine the ability to cross over the Bosphorus into Asian provinces. Byzantium is besieged and Licinius assembles a second military force, under his newly elevated co-emperor Martinian at Lampsacus (modern-day Lapseki).
• September 18 – Battle of Chrysopolis: Constantine I definitively defeats Licinius at Chrysopolis, and becomes sole Emperor, thus ending the period of the Tetrarchy. Licinius escapes and gathers around 30,000 of his surviving troops at Nicomedia.
• December 19 – Licinius abdicates his position as Emperor. He is pardoned by Constantine I as a result of the supplication of his wife Constantia (who is Constantine's halfsister), and banished to Thessalonica as a private citizen.
• Constantine I founds Constantinople and incorporates Byzantium into the new capital. He reorganises the Roman army in smaller units classified into three grades: palatini, (imperial escort armies); comitatenses, (forces based in frontier provinces) and limitanei (auxilia border troops).

Births

• Chu Suanzi, Chinese empress of the Jin dynasty (d. 384)

Deaths

• Guo Pu, Chinese historian, poet and writer (b. 276)
• Wang Dun (or Chuzhong), Chinese warlord (b. 266)
• Zhang Mao, Chinese ruler of Former Liang (b. 277)