1420

1420 (MCDXX) was a leap year starting on Monday of the Julian calendar, the 1420th year of the Common Era (CE) and Anno Domini (AD) designations, the 420th year of the 2nd millennium, the 20th year of the 15th century, and the 1st year of the 1420s decade. As of the start of 1420, the Gregorian calendar was 9 days ahead of the Julian calendar, which was the dominant calendar of the time.

Millennium:	2nd millennium
Centuries:	14th century – 15th century – 16th century
Decades:	1390s  1400s  1410s  – 1420s –  1430s  1440s  1450s
Years:	1417 1418 1419 – 1420 – 1421 1422 1423

1420 in other calendars

Gregorian calendar	1420 MCDXX
Ab urbe condita	2173
Armenian calendar	869 ԹՎ ՊԿԹ
Assyrian calendar	6170
Balinese saka calendar	1341–1342
Bengali calendar	827
Berber calendar	2370
English Regnal year	7 Hen. 5 – 8 Hen. 5
Buddhist calendar	1964
Burmese calendar	782
Byzantine calendar	6928–6929
Chinese calendar	己亥年 (Earth Pig) 4116 or 4056     — to — 庚子年 (Metal Rat) 4117 or 4057
Coptic calendar	1136–1137
Discordian calendar	2586
Ethiopian calendar	1412–1413
Hebrew calendar	5180–5181
Hindu calendars
- Vikram Samvat	1476–1477
- Shaka Samvat	1341–1342
- Kali Yuga	4520–4521
Holocene calendar	11420
Igbo calendar	420–421
Iranian calendar	798–799
Islamic calendar	822–823
Japanese calendar	Ōei 27 (応永２７年)
Javanese calendar	1334–1335
Julian calendar	1420 MCDXX
Korean calendar	3753
Minguo calendar	492 before ROC 民前492年
Nanakshahi calendar	−48
Thai solar calendar	1962–1963
Tibetan calendar	ས་མོ་ཕག་ལོ་ (female Earth-Boar) 1546 or 1165 or 393     — to — ལྕགས་ཕོ་བྱི་བ་ལོ་ (male Iron-Rat) 1547 or 1166 or 394

Events

• May 21 – Treaty of Troyes. With the Burgundian faction dominant in France, King Charles VI of France acknowledges Henry V of England as his heir and as virtual ruler of most of France.
• May 25 – Henry the Navigator is appointed governor of the Order of Christ.
• The Madeira Islands were discovered by the Portuguese João Gonçalves Zarco.
• Hussite Wars – Sigismund, Holy Roman Emperor fails at the battle of Vysehrad and is ejected from Bohemia.
• Catherine of Valois marries Henry V of England.
• Henry V of England starts the construction Grace Dieu (ship)
• Construction begins on the Temple of Heaven in Beijing, China while the Forbidden City is completed.
• World population reaches 3.75 million.

Births

• November 24 – John Stafford, 1st Earl of Wiltshire, English politician (died 1473)
• date unknown
  • Jean Fouquet, French painter (died 1481)
  • Nicolas Jenson, French engraver (died 1480)

Deaths

• June 11 – John III, Burgrave of Nuremberg (born c.1369)
• August 9 – Pierre d'Ailly, French theologian and cardinal (born 1351)
• September 3 – Robert Stewart, 1st Duke of Albany, regent of Scotland
• date unknown
  • Epiphanius the Wise, Russian saint
  • Andrew of Wyntoun, Scottish chronicler (born 1350)