1549
| Years | 
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| Millennium | 
| 2nd millennium | 
| Centuries | 
| Decades | 
| Years | 
| 1549 by topic | 
|---|
| Arts and science | 
| Leaders | 
| 
 | 
| Birth and death categories | 
| Births – Deaths | 
| Establishments and disestablishments categories | 
| Establishments – Disestablishments | 
| Works category | 
| 
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| Gregorian calendar | 1549 MDXLIX | 
| Ab urbe condita | 2302 | 
| Armenian calendar | 998 ԹՎ ՋՂԸ | 
| Assyrian calendar | 6299 | 
| Balinese saka calendar | 1470–1471 | 
| Bengali calendar | 955–956 | 
| Berber calendar | 2499 | 
| English Regnal year | 2 Edw. 6 – 3 Edw. 6 | 
| Buddhist calendar | 2093 | 
| Burmese calendar | 911 | 
| Byzantine calendar | 7057–7058 | 
| Chinese calendar | 戊申年 (Earth Monkey) 4246 or 4039 — to — 己酉年 (Earth Rooster) 4247 or 4040 | 
| Coptic calendar | 1265–1266 | 
| Discordian calendar | 2715 | 
| Ethiopian calendar | 1541–1542 | 
| Hebrew calendar | 5309–5310 | 
| Hindu calendars | |
| - Vikram Samvat | 1605–1606 | 
| - Shaka Samvat | 1470–1471 | 
| - Kali Yuga | 4649–4650 | 
| Holocene calendar | 11549 | 
| Igbo calendar | 549–550 | 
| Iranian calendar | 927–928 | 
| Islamic calendar | 955–956 | 
| Japanese calendar | Tenbun 18 (天文18年) | 
| Javanese calendar | 1467–1468 | 
| Julian calendar | 1549 MDXLIX | 
| Korean calendar | 3882 | 
| Minguo calendar | 363 before ROC 民前363年 | 
| Nanakshahi calendar | 81 | 
| Thai solar calendar | 2091–2092 | 
| Tibetan calendar | 阳土猴年 (male Earth-Monkey) 1675 or 1294 or 522 — to — 阴土鸡年 (female Earth-Rooster) 1676 or 1295 or 523 | 
Year 1549 (MDXLIX) was a common year starting on Tuesday of the Julian calendar. In the Kingdom of England, it was known as "The Year of the Many-Headed Monster", because of the unusually high number of rebellions which occurred in the country.