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|Centuries:||1st century BC – 1st century – 2nd century|
|Decades:||30s 40s 50s – 60s – 70s 80s 90s|
|Years:||65 66 67 – 68 – 69 70 71|
|68 by topic|
|State leaders – Sovereign states|
|Birth and death categories|
|Births – Deaths|
|Establishment and disestablishment categories|
|Establishments – Disestablishments|
|Ab urbe condita||821|
|Chinese calendar||丁卯年 (Fire Rabbit)
2764 or 2704
— to —
戊辰年 (Earth Dragon)
2765 or 2705
|Coptic calendar||−216 – −215|
|- Vikram Samvat||124–125|
|- Shaka Samvat||N/A|
|- Kali Yuga||3169–3170|
|Iranian calendar||554 BP – 553 BP|
|Islamic calendar||571 BH – 570 BH|
|Minguo calendar||1844 before ROC
|Seleucid era||379/380 AG|
|Thai solar calendar||610–611|
Year 68 (LXVIII) was a leap year starting on Friday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Asconius and Thraculus, or the start of the Year of the Four Emperors (or, less frequently, year 821 Ab urbe condita). The denomination 68 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. These are now used throughout the world.
- Final year that Tacitus records Annals, a written history of the Roman Empire.
- June 8 – The Roman Senate accepts emperor Galba.
- June 9 – Roman Emperor Nero commits suicide four miles outside Rome. He is deserted by the Praetorian Guard and then stabs himself in the throat.
- Legio I Macriana liberatrix and Legio I Adiutrix are created.
- Lucius Clodius Macer revolts against emperor Nero.
- Marcus Ulpius Trajanus, father of Trajan, becomes consul.
- Trajan moves to Scythopolis and crosses the Jordan River with Legio X Fretensis. He lays siege to Jericho and destroys the monastery of Qumran, where the Dead Sea Scrolls are originated.
- The Roman Senate declares Nero as a persona non grata. In the line of succession, Galba follows Nero.
- Winter – Titus sets up camp at Jericho and the Romans cut off escape routes toward Jerusalem.
- Venutius successfully deposes his wife Cartimandua and becomes the ruler of the Brigantes.
- An iron chain suspension bridge is constructed in China
- Buddhism officially arrives in China with the building of the White Horse Temple.
- Ignatius of Antioch becomes the third bishop of Antioch.
- The Gospel of Mark is written (approximate date).
- The Essenes place the Dead Sea Scrolls in the caves at Qumran.
- April 25 – Saint Mark, the first Pope of Alexandria and the founder of Christianity in Africa
- June 9 – Nero, Emperor of the Roman Empire (suicide) (b. 37 AD)
- Onesimus, Bishop of Byzantium
- Vindex, rebellious governor