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| Millennium: | 1st millennium |
|---|---|
| Centuries: | |
| Decades: | |
| Years: |
| 651 by topic |
|---|
| Leaders |
| Categories |
| Gregorian calendar | 651 DCLI |
| Ab urbe condita | 1404 |
| Armenian calendar | 100 ԹՎ Ճ |
| Assyrian calendar | 5401 |
| Balinese saka calendar | 572–573 |
| Bengali calendar | 58 |
| Berber calendar | 1601 |
| Buddhist calendar | 1195 |
| Burmese calendar | 13 |
| Byzantine calendar | 6159–6160 |
| Chinese calendar | 庚戌年 (Metal Dog) 3348 or 3141 — to — 辛亥年 (Metal Pig) 3349 or 3142 |
| Coptic calendar | 367–368 |
| Discordian calendar | 1817 |
| Ethiopian calendar | 643–644 |
| Hebrew calendar | 4411–4412 |
| Hindu calendars | |
| - Vikram Samvat | 707–708 |
| - Shaka Samvat | 572–573 |
| - Kali Yuga | 3751–3752 |
| Holocene calendar | 10651 |
| Iranian calendar | 29–30 |
| Islamic calendar | 30–31 |
| Japanese calendar | Hakuchi 2 (白雉２年) |
| Javanese calendar | 542–543 |
| Julian calendar | 651 DCLI |
| Korean calendar | 2984 |
| Minguo calendar | 1261 before ROC 民前1261年 |
| Nanakshahi calendar | −817 |
| Seleucid era | 962/963 AG |
| Thai solar calendar | 1193–1194 |
| Tibetan calendar | 阳金狗年 (male Iron-Dog) 777 or 396 or −376 — to — 阴金猪年 (female Iron-Pig) 778 or 397 or −375 |
Year 651 (DCLI) was a common year starting on Saturday (link will display the full calendar) of the Julian calendar. The denomination 651 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.