| 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 |
| Bahá'í calendar | -1320 – -1319 |
| Berber calendar | 1474 |
| 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 | 579 – 580 |
| - 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 |
| Thai solar calendar | 1067 |
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