| Millennium: | 1st millennium |
|---|---|
| Centuries: | |
| Decades: | |
| Years: |
| 509 by topic |
|---|
| Leaders |
| Categories |
| Gregorian calendar | 509 DIX |
| Ab urbe condita | 1262 |
| Assyrian calendar | 5259 |
| Balinese saka calendar | 430–431 |
| Bengali calendar | −84 |
| Berber calendar | 1459 |
| Buddhist calendar | 1053 |
| Burmese calendar | −129 |
| Byzantine calendar | 6017–6018 |
| Chinese calendar | 戊子年 (Earth Rat) 3206 or 2999 — to — 己丑年 (Earth Ox) 3207 or 3000 |
| Coptic calendar | 225–226 |
| Discordian calendar | 1675 |
| Ethiopian calendar | 501–502 |
| Hebrew calendar | 4269–4270 |
| Hindu calendars | |
| - Vikram Samvat | 565–566 |
| - Shaka Samvat | 430–431 |
| - Kali Yuga | 3609–3610 |
| Holocene calendar | 10509 |
| Iranian calendar | 113 BP – 112 BP |
| Islamic calendar | 117 BH – 115 BH |
| Javanese calendar | 395–396 |
| Julian calendar | 509 DIX |
| Korean calendar | 2842 |
| Minguo calendar | 1403 before ROC 民前1403年 |
| Nanakshahi calendar | −959 |
| Seleucid era | 820/821 AG |
| Thai solar calendar | 1051–1052 |
| Tibetan calendar | 阳土鼠年 (male Earth-Rat) 635 or 254 or −518 — to — 阴土牛年 (female Earth-Ox) 636 or 255 or −517 |
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Year 509 (DIX) was a common year starting on Thursday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Inportunus without colleague (or, less frequently, year 1262 Ab urbe condita). The denomination 509 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.