| Millennium: | 2nd millennium |
|---|---|
| Centuries: | |
| Decades: | |
| Years: |
| 1838 by topic |
|---|
| Humanities |
| By country |
| Other topics |
| Lists of leaders |
| Birth and death categories |
| Establishments and disestablishments categories |
| Works category |
| Gregorian calendar | 1838 MDCCCXXXVIII |
| Ab urbe condita | 2591 |
| Armenian calendar | 1287 ԹՎ ՌՄՁԷ |
| Assyrian calendar | 6588 |
| Balinese saka calendar | 1759–1760 |
| Bengali calendar | 1245 |
| Berber calendar | 2788 |
| British Regnal year | 1 Vict. 1 – 2 Vict. 1 |
| Buddhist calendar | 2382 |
| Burmese calendar | 1200 |
| Byzantine calendar | 7346–7347 |
| Chinese calendar | 丁酉年 (Fire Rooster) 4535 or 4328 — to — 戊戌年 (Earth Dog) 4536 or 4329 |
| Coptic calendar | 1554–1555 |
| Discordian calendar | 3004 |
| Ethiopian calendar | 1830–1831 |
| Hebrew calendar | 5598–5599 |
| Hindu calendars | |
| - Vikram Samvat | 1894–1895 |
| - Shaka Samvat | 1759–1760 |
| - Kali Yuga | 4938–4939 |
| Holocene calendar | 11838 |
| Igbo calendar | 838–839 |
| Iranian calendar | 1216–1217 |
| Islamic calendar | 1253–1254 |
| Japanese calendar | Tenpō 9 (天保９年) |
| Javanese calendar | 1765–1766 |
| Julian calendar | Gregorian minus 12 days |
| Korean calendar | 4171 |
| Minguo calendar | 74 before ROC 民前74年 |
| Nanakshahi calendar | 370 |
| Thai solar calendar | 2380–2381 |
| Tibetan calendar | 阴火鸡年 (female Fire-Rooster) 1964 or 1583 or 811 — to — 阳土狗年 (male Earth-Dog) 1965 or 1584 or 812 |
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1838 (MDCCCXXXVIII) was a common year starting on Monday of the Gregorian calendar and a common year starting on Saturday of the Julian calendar, the 1838th year of the Common Era (CE) and Anno Domini (AD) designations, the 838th year of the 2nd millennium, the 38th year of the 19th century, and the 9th year of the 1830s decade. As of the start of 1838, the Gregorian calendar was 12 days ahead of the Julian calendar, which remained in localized use until 1923.