| Years |
|---|
| Millennium |
| 2nd millennium |
| Centuries |
| Decades |
| Years |
| 1400 by topic |
|---|
| Arts, history, and science |
| Countries |
|
|
| Lists of leaders |
| Birth and death categories |
| Establishments and disestablishments categories |
| Works category |
| Gregorian calendar | 1400 MCD |
| Ab urbe condita | 2153 |
| Armenian calendar | 849 ԹՎ ՊԽԹ |
| Assyrian calendar | 6150 |
| Balinese saka calendar | 1321–1322 |
| Bengali calendar | 807 |
| Berber calendar | 2350 |
| English Regnal year | 1 Hen. 4 – 2 Hen. 4 |
| Buddhist calendar | 1944 |
| Burmese calendar | 762 |
| Byzantine calendar | 6908–6909 |
| Chinese calendar | 己卯年 (Earth Rabbit) 4096 or 4036 — to — 庚辰年 (Metal Dragon) 4097 or 4037 |
| Coptic calendar | 1116–1117 |
| Discordian calendar | 2566 |
| Ethiopian calendar | 1392–1393 |
| Hebrew calendar | 5160–5161 |
| Hindu calendars | |
| - Vikram Samvat | 1456–1457 |
| - Shaka Samvat | 1321–1322 |
| - Kali Yuga | 4500–4501 |
| Holocene calendar | 11400 |
| Igbo calendar | 400–401 |
| Iranian calendar | 778–779 |
| Islamic calendar | 802–803 |
| Japanese calendar | Ōei 7 (応永7年) |
| Javanese calendar | 1314–1315 |
| Julian calendar | 1400 MCD |
| Korean calendar | 3733 |
| Minguo calendar | 512 before ROC 民前512年 |
| Nanakshahi calendar | −68 |
| Thai solar calendar | 1942–1943 |
| Tibetan calendar | ས་མོ་ཡོས་ལོ་ (female Earth-Hare) 1526 or 1145 or 373 — to — ལྕགས་ཕོ་འབྲུག་ལོ་ (male Iron-Dragon) 1527 or 1146 or 374 |
1400 (MCD) was a leap year starting on Thursday in the Julian calendar. It was the last year of the 14th century. In the proleptic Gregorian calendar, the year 1400 was an exceptional common year starting on Wednesday.