| 1870 by topic |
|---|
| Arts, history, and science |
| Countries |
|
|
| Lists of leaders |
| Birth and death categories |
| Establishments and disestablishments categories |
| Works category |
| Gregorian calendar | 1870 MDCCCLXX |
| Ab urbe condita | 2623 |
| Armenian calendar | 1319 ԹՎ ՌՅԺԹ |
| Assyrian calendar | 6620 |
| Bahá'í calendar | 26–27 |
| Balinese saka calendar | 1791–1792 |
| Bengali calendar | 1277 |
| Berber calendar | 2820 |
| British Regnal year | 33 Vict. 1 – 34 Vict. 1 |
| Buddhist calendar | 2414 |
| Burmese calendar | 1232 |
| Byzantine calendar | 7378–7379 |
| Chinese calendar | 己巳年 (Earth Snake) 4566 or 4506 — to — 庚午年 (Metal Horse) 4567 or 4507 |
| Coptic calendar | 1586–1587 |
| Discordian calendar | 3036 |
| Ethiopian calendar | 1862–1863 |
| Hebrew calendar | 5630–5631 |
| Hindu calendars | |
| - Vikram Samvat | 1926–1927 |
| - Shaka Samvat | 1791–1792 |
| - Kali Yuga | 4970–4971 |
| Holocene calendar | 11870 |
| Igbo calendar | 870–871 |
| Iranian calendar | 1248–1249 |
| Islamic calendar | 1286–1287 |
| Japanese calendar | Meiji 3 (明治3年) |
| Javanese calendar | 1798–1799 |
| Julian calendar | Gregorian minus 12 days |
| Korean calendar | 4203 |
| Minguo calendar | 42 before ROC 民前42年 |
| Nanakshahi calendar | 402 |
| Thai solar calendar | 2412–2413 |
| Tibetan calendar | ས་མོ་སྦྲུལ་ལོ་ (female Earth-Snake) 1996 or 1615 or 843 — to — ལྕགས་ཕོ་རྟ་ལོ་ (male Iron-Horse) 1997 or 1616 or 844 |
1870 (MDCCCLXX) was a common year starting on Saturday in the Gregorian calendar and a common year starting on Thursday in the Julian calendar.