1781: Lěto
◄ | 17.
lětstotk | 18. lětstotk | 19. lětstotk | ►
◄◄ | ◄ | 1777 | 1778 | 1779 | 1780 | 1781 | 1782 | 1783 | 1784 | 1785 | ► | ►►
| gregorianiski kalender | 1781 MDCCLXXXI |
| Ab urbe condita | 2534 |
| Armenski kalender | 1230 ԹՎ ՌՄԼ |
| Berberski kalender | 2731 |
| Buddhistiski kalender | 2325 |
| Burmaski kalender | 1143 |
| Chinski kalender | 4417 / 4477 – 4418 / 4478 庚子 – 辛丑 |
| Etiopiski kalender | 1773 – 1774 |
| Hebrejski kalender | 5541 – 5542 |
| Holocenski kalender | 11781 |
| Indiske kalendry | |
| - Vikram Samvat | 1836 – 1837 |
| - Indiski narodny kalender (Shaka Samvat) | 1703 – 1704 |
| - Kali Yuga | 4882 – 4883 |
| Iranski kalender | 1159 – 1160 |
| Islamski kalender | 1195 – 1196 |
| - Imperialne lěto | Kōki 2441 (皇紀2441年) |
| Julianiski kalender | 1826 |
| Koptiski kalender | 1497 – 1498 |
| Korejski kalender | 4114 |
| Runowy kalender | 2031 |
| Thailandski słónčny kalender | 2324 |
Podawki
Narodniny
- 30. januara: Adelbert von Chamisso – němski přirodospytnik a basnik († 1838)
Wumrěće
Wotkaz
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