| Millennium: | 1st millennium |
|---|---|
| Centuries: | 5th century – 6th century – 7th century |
| Decades: | 490s 500s 510s – 520s – 530s 540s 550s |
| Years: | 521 522 523 – 524 – 525 526 527 |
| 524 by topic | |
| Politics | |
| State leaders – Sovereign states | |
| Birth and death categories | |
| Births – Deaths | |
| Establishment and disestablishment categories | |
| Establishments – Disestablishments | |
| Gregorian calendar | 524 DXXIV |
| Ab urbe condita | 1277 |
| Armenian calendar | N/A |
| Assyrian calendar | 5274 |
| Bahá'í calendar | -1320–-1319 |
| Bengali calendar | -69 |
| Berber calendar | 1474 |
| English Regnal year | N/A |
| Buddhist calendar | 1068 |
| Burmese calendar | -114 |
| Byzantine calendar | 6032–6033 |
| Chinese calendar | 癸卯年十二月初十日 (3160/3220-12-10) — to —
甲辰年十一月廿一日(3161/3221-11-21) |
| Coptic calendar | 240–241 |
| Ethiopian calendar | 516–517 |
| Hebrew calendar | 4284–4285 |
| Hindu calendars | |
| - Vikram Samvat | 580–581 |
| - Shaka Samvat | 446–447 |
| - Kali Yuga | 3625–3626 |
| Holocene calendar | 10524 |
| Iranian calendar | 98 BP – 97 BP |
| Islamic calendar | 101 BH – 100 BH |
| Japanese calendar | |
| Korean calendar | 2857 |
| Minguo calendar | 1388 before ROC 民前1388年 |
| Thai solar calendar | 1067 |
Year 524 (DXXIV) was a leap year starting on Monday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Iustinus and Opilio (or, less frequently, year 1277 Ab urbe condita). The denomination 524 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.