Year 319 (CCCXIX) was a common year starting on Thursday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Constantinus and Licinius (or, less frequently, year 1072 Ab urbe condita). The denomination 319 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.
| Millennium: | 1st millennium |
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| Centuries: |
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| Decades: |
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| Years: |
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| Gregorian calendar | 319 CCCXIX |
| Ab urbe condita | 1072 |
| Assyrian calendar | 5069 |
| Balinese saka calendar | 240–241 |
| Bengali calendar | −274 |
| Berber calendar | 1269 |
| Buddhist calendar | 863 |
| Burmese calendar | −319 |
| Byzantine calendar | 5827–5828 |
| Chinese calendar | 戊寅年 (Earth Tiger) 3016 or 2809 — to — 己卯年 (Earth Rabbit) 3017 or 2810 |
| Coptic calendar | 35–36 |
| Discordian calendar | 1485 |
| Ethiopian calendar | 311–312 |
| Hebrew calendar | 4079–4080 |
| Hindu calendars | |
| - Vikram Samvat | 375–376 |
| - Shaka Samvat | 240–241 |
| - Kali Yuga | 3419–3420 |
| Holocene calendar | 10319 |
| Iranian calendar | 303 BP – 302 BP |
| Islamic calendar | 312 BH – 311 BH |
| Javanese calendar | 200–201 |
| Julian calendar | 319 CCCXIX |
| Korean calendar | 2652 |
| Minguo calendar | 1593 before ROC 民前1593年 |
| Nanakshahi calendar | −1149 |
| Seleucid era | 630/631 AG |
| Thai solar calendar | 861–862 |
| Tibetan calendar | 阳土虎年 (male Earth-Tiger) 445 or 64 or −708 — to — 阴土兔年 (female Earth-Rabbit) 446 or 65 or −707 |
