| Millennium: | 2nd millennium |
|---|---|
| Centuries: | |
| Decades: | |
| Years: |
| 1440 by topic |
|---|
| Arts and science |
| Leaders |
| Birth and death categories |
| Births – Deaths |
| Establishments and disestablishments categories |
| Establishments – Disestablishments |
| Art and literature |
| 1440 in poetry |
| Gregorian calendar | 1440 MCDXL |
| Ab urbe condita | 2193 |
| Armenian calendar | 889 ԹՎ ՊՁԹ |
| Assyrian calendar | 6190 |
| Balinese saka calendar | 1361–1362 |
| Bengali calendar | 847 |
| Berber calendar | 2390 |
| English Regnal year | 18 Hen. 6 – 19 Hen. 6 |
| Buddhist calendar | 1984 |
| Burmese calendar | 802 |
| Byzantine calendar | 6948–6949 |
| Chinese calendar | 己未年 (Earth Goat) 4137 or 3930 — to — 庚申年 (Metal Monkey) 4138 or 3931 |
| Coptic calendar | 1156–1157 |
| Discordian calendar | 2606 |
| Ethiopian calendar | 1432–1433 |
| Hebrew calendar | 5200–5201 |
| Hindu calendars | |
| - Vikram Samvat | 1496–1497 |
| - Shaka Samvat | 1361–1362 |
| - Kali Yuga | 4540–4541 |
| Holocene calendar | 11440 |
| Igbo calendar | 440–441 |
| Iranian calendar | 818–819 |
| Islamic calendar | 843–844 |
| Japanese calendar | Eikyō 12 (永享１２年) |
| Javanese calendar | 1355–1356 |
| Julian calendar | 1440 MCDXL |
| Korean calendar | 3773 |
| Minguo calendar | 472 before ROC 民前472年 |
| Nanakshahi calendar | −28 |
| Thai solar calendar | 1982–1983 |
| Tibetan calendar | 阴土羊年 (female Earth-Goat) 1566 or 1185 or 413 — to — 阳金猴年 (male Iron-Monkey) 1567 or 1186 or 414 |
1440 (MCDXL) was a leap year starting on Friday of the Julian calendar, the 1440th year of the Common Era (CE) and Anno Domini (AD) designations, the 440th year of the 2nd millennium, the 40th year of the 15th century, and the 1st year of the 1440s decade. As of the start of 1440, the Gregorian calendar was 9 days ahead of the Julian calendar, which was the dominant calendar of the time.