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|Gregorian calendar||AD 72
|Ab urbe condita||825|
|Chinese calendar||辛未年 (Metal Goat)
2768 or 2708
— to —
壬申年 (Water Monkey)
2769 or 2709
|Coptic calendar||−212 – −211|
|- Vikram Samvat||128–129|
|- Shaka Samvat||N/A|
|- Kali Yuga||3172–3173|
|Iranian calendar||550 BP – 549 BP|
|Islamic calendar||567 BH – 566 BH|
|Julian calendar||AD 72
|Minguo calendar||1840 before ROC
|Seleucid era||383/384 AG|
|Thai solar calendar||614–615|
AD 72 (LXXII) 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 Augustus and Vespasianus (or, less frequently, year 825 Ab urbe condita). The denomination AD 72 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.
- Antiochus IV of Syria is deposed by emperor Vespasian.
- Vespasian and Titus are Roman Consuls.
- First Jewish-Roman War: The Roman army (Legio X Fretensis) under Lucilius Bassus lays siege to the Jewish garrison of Machaerus at the Dead Sea. After they capitulate, the Zealots are allowed to leave the fortress before it is destroyed.
- The Romans lay siege to Masada, a desert fortress held by Jewish victims of the Sicarii.
- Flavia Neapolis (Nablus) is founded.
- Vespasian starts the building of the Colosseum; the amphitheatre is used for gladiatorial games and public spectacles, such as sea battles, re-enactments of famous battles, and dramas of Classical mythology.