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| Millennium: | 2nd millennium |
|---|---|
| Centuries: | |
| Decades: | |
| Years: |
| 1400 by topic |
|---|
| Leaders |
| Birth and death categories |
| Births – Deaths |
| Establishments and disestablishments categories |
| Establishments – Disestablishments |
| Art and literature |
| 1400 in poetry |
| 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) 4097 or 3890 — to — 庚辰年 (Metal Dragon) 4098 or 3891 |
| 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 | 阴土兔年 (female Earth-Rabbit) 1526 or 1145 or 373 — to — 阳金龙年 (male Iron-Dragon) 1527 or 1146 or 374 |
Year 1400 (MCD) was a leap year starting on Thursday (link will display the full calendar) of the Julian calendar, which was used in Europe until 1582. The year 1400 would not have been a leap year on the Gregorian calendar, and is not treated as such on the Proleptic Gregorian calendar used for calculations for pre-Gregorian dates.[1] It was the 1400th year of the Common Era and Anno Domini designations, the 400th year of the 2nd millennium, the 100th and last year of the 14th century, and the first year of the 1400s decade. The dominical letter for 1400 is DC on the Julian calendar for the leap year starting on Thursday, and E for the century common year starting on Wednesday.
- ^ Under the proleptic calculation, 1400 was a common year starting on Wednesday. The leap year began on a Thursday, and it ended on a Friday. The common year began on a Wednesday, and ended on a Wednesday, but the leap year ran from the Thursday to the Friday. The Wednesday at the beginning is January 1, the Wednesday at the end is December 31. However, unlike most common years, the year 1400 was not a regular common year starting on Wednesday but a century common year starting on Wednesday. The century common year was the same year as the leap year, which began on Thursday and ended on Friday. No such year other than 1400 was a century leap year starting on Thursday, and finishing on Friday. Only the year 1400 was that type. You know that the leap day is Sunday in most leap years that begin on Thursday and end on Friday, as you have to remember. Being an exceptional common year starting on Wednesday, no other year was like it other than 1400. The exceptional common year starting on Wednesday, known as 1400, was different from the leap year that began on Thursday and ended on Friday.