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| Millennium: | 2nd millennium |
|---|---|
| Centuries: | |
| Decades: | |
| Years: |
| 1641 by topic |
|---|
| Arts and science |
| Leaders |
| Birth and death categories |
| Births – Deaths |
| Establishments and disestablishments categories |
| Establishments – Disestablishments |
| Works category |
| Gregorian calendar | 1641 MDCXLI |
| Ab urbe condita | 2394 |
| Armenian calendar | 1090 ԹՎ ՌՂ |
| Assyrian calendar | 6391 |
| Balinese saka calendar | 1562–1563 |
| Bengali calendar | 1048 |
| Berber calendar | 2591 |
| English Regnal year | 16 Cha. 1 – 17 Cha. 1 |
| Buddhist calendar | 2185 |
| Burmese calendar | 1003 |
| Byzantine calendar | 7149–7150 |
| Chinese calendar | 庚辰年 (Metal Dragon) 4338 or 4131 — to — 辛巳年 (Metal Snake) 4339 or 4132 |
| Coptic calendar | 1357–1358 |
| Discordian calendar | 2807 |
| Ethiopian calendar | 1633–1634 |
| Hebrew calendar | 5401–5402 |
| Hindu calendars | |
| - Vikram Samvat | 1697–1698 |
| - Shaka Samvat | 1562–1563 |
| - Kali Yuga | 4741–4742 |
| Holocene calendar | 11641 |
| Igbo calendar | 641–642 |
| Iranian calendar | 1019–1020 |
| Islamic calendar | 1050–1051 |
| Japanese calendar | Kan'ei 18 (寛永１８年) |
| Javanese calendar | 1562–1563 |
| Julian calendar | Gregorian minus 10 days |
| Korean calendar | 3974 |
| Minguo calendar | 271 before ROC 民前271年 |
| Nanakshahi calendar | 173 |
| Thai solar calendar | 2183–2184 |
| Tibetan calendar | 阳金龙年 (male Iron-Dragon) 1767 or 1386 or 614 — to — 阴金蛇年 (female Iron-Snake) 1768 or 1387 or 615 |
1641 (MDCXLI) was a common year starting on Tuesday of the Gregorian calendar and a common year starting on Friday of the Julian calendar, the 1641st year of the Common Era (CE) and Anno Domini (AD) designations, the 641st year of the 2nd millennium, the 41st year of the 17th century, and the 2nd year of the 1640s decade. As of the start of 1641, the Gregorian calendar was 10 days ahead of the Julian calendar, which remained in localized use until 1923.