| Millennium: | 2nd millennium |
|---|---|
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| 1777 by topic |
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| Arts and science |
| Countries |
| Lists of leaders |
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| Gregorian calendar | 1777 MDCCLXXVII |
| Ab urbe condita | 2530 |
| Armenian calendar | 1226 ԹՎ ՌՄԻԶ |
| Assyrian calendar | 6527 |
| Balinese saka calendar | 1698–1699 |
| Bengali calendar | 1184 |
| Berber calendar | 2727 |
| British Regnal year | 17 Geo. 3 – 18 Geo. 3 |
| Buddhist calendar | 2321 |
| Burmese calendar | 1139 |
| Byzantine calendar | 7285–7286 |
| Chinese calendar | 丙申年 (Fire Monkey) 4474 or 4267 — to — 丁酉年 (Fire Rooster) 4475 or 4268 |
| Coptic calendar | 1493–1494 |
| Discordian calendar | 2943 |
| Ethiopian calendar | 1769–1770 |
| Hebrew calendar | 5537–5538 |
| Hindu calendars | |
| - Vikram Samvat | 1833–1834 |
| - Shaka Samvat | 1698–1699 |
| - Kali Yuga | 4877–4878 |
| Holocene calendar | 11777 |
| Igbo calendar | 777–778 |
| Iranian calendar | 1155–1156 |
| Islamic calendar | 1190–1191 |
| Japanese calendar | An'ei 6 (安永６年) |
| Javanese calendar | 1702–1703 |
| Julian calendar | Gregorian minus 11 days |
| Korean calendar | 4110 |
| Minguo calendar | 135 before ROC 民前135年 |
| Nanakshahi calendar | 309 |
| Thai solar calendar | 2319–2320 |
| Tibetan calendar | 阳火猴年 (male Fire-Monkey) 1903 or 1522 or 750 — to — 阴火鸡年 (female Fire-Rooster) 1904 or 1523 or 751 |
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1777 (MDCCLXXVII) was a common year starting on Wednesday of the Gregorian calendar and a common year starting on Sunday of the Julian calendar, the 1777th year of the Common Era (CE) and Anno Domini (AD) designations, the 777th year of the 2nd millennium, the 77th year of the 18th century, and the 8th year of the 1770s decade. As of the start of 1777, the Gregorian calendar was 11 days ahead of the Julian calendar, which remained in localized use until 1923.