| Centuries: | 18th century - 19th century - 20th century |
| Decades: | 1780s 1790s 1800s - 1810s - 1820s 1830s 1840s |
| Years: | 1809 1810 1811 - 1812 - 1813 1814 1815 |
| 1812 in topic: |
| Subjects: Archaeology - Architecture - |
| Art - Literature (Poetry) - Music - Science |
| Sports - Rail Transport |
| Countries: Australia - Canada - France - Germany - Ireland - Mexico - New Zealand - Norway - South Africa - UK - USA |
| Leaders: State leaders - Colonial governors |
| Category: Establishments - Disestablishments |
| Births - Deaths - Works |
Year 1812 (MDCCCXII), a leap year, started on Wednesday (link will display the full calendar) of the Gregorian calendar (or a leap year starting on Monday of the 12-day slower Julian calendar).
Contents |
| Gregorian calendar | 1812 MDCCCXII |
| Ab urbe condita | 2565 |
| Armenian calendar | 1261 ԹՎ ՌՄԿԱ |
| Bahá'í calendar | -32 – -31 |
| Berber calendar | 2762 |
| Buddhist calendar | 2356 |
| Burmese calendar | 1174 |
| Byzantine calendar | 7320 – 7321 |
| Chinese calendar | 辛未年十一月十七日 (4448/4508-11-17) — to —
壬申年十一月廿八日(4449/4509-11-28) |
| Coptic calendar | 1528 – 1529 |
| Ethiopian calendar | 1804 – 1805 |
| Hebrew calendar | 5572 – 5573 |
| Hindu calendars | |
| - Vikram Samvat | 1867 – 1868 |
| - Shaka Samvat | 1734 – 1735 |
| - Kali Yuga | 4913 – 4914 |
| Holocene calendar | 11812 |
| Iranian calendar | 1190 – 1191 |
| Islamic calendar | 1226 – 1227 |
| Japanese calendar | Bunka 9 (文化9年) |
| Korean calendar | 4145 |
| Thai solar calendar | 2355 |
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