| Millennium: | 1st Millennium |
|---|---|
| Centuries: | 1st cent. BC – 1st cent. – 2nd cent. |
| Decades: | 10s 20s 30s – 40s – 50s 60s 70s |
| Years: | 46 47 48 – 49 – 50 51 52 |
| Gregorian calendar | 49 XLIX |
| Ab urbe condita | 802 |
| Assyrian calendar | 4799 |
| Bengali calendar | −544 |
| Berber calendar | 999 |
| Buddhist calendar | 593 |
| Burmese calendar | −589 |
| Byzantine calendar | 5557–5558 |
| Chinese calendar | 戊申年 (Earth Monkey) 2745 or 2685 — to — 己酉年 (Earth Rooster) 2746 or 2686 |
| Coptic calendar | −235 – −234 |
| Discordian calendar | 1215 |
| Ethiopian calendar | 41–42 |
| Hebrew calendar | 3809–3810 |
| Hindu calendars | |
| - Vikram Samvat | 105–106 |
| - Shaka Samvat | N/A |
| - Kali Yuga | 3149–3150 |
| Holocene calendar | 10049 |
| Iranian calendar | 573 BP – 572 BP |
| Islamic calendar | 591 BH – 590 BH |
| Javanese calendar | N/A |
| Julian calendar | 49 XLIX |
| Korean calendar | 2382 |
| Minguo calendar | 1863 before ROC 民前1863年 |
| Nanakshahi calendar | −1419 |
| Seleucid era | 360/361 AG |
| Thai solar calendar | 591–592 |
The year 49 BC