1000 (M) was a leap year starting on Monday of the Julian calendar, the 1000th year of the Common Era (CE) and Anno Domini (AD) designations, the 1000th and last year of the 1st millennium, the 100th and last year of the 10th century, and the 1st year of the 1000s decade. As of the start of 1000, the Gregorian calendar was 5 days ahead of the Julian calendar, which was the dominant calendar of the time. In the proleptic Gregorian calendar, it was an exceptional common year starting on Wednesday, and was just like the century common year 1800.

Millennium: 1st millennium
Centuries: 9th century10th century11th century
Decades: 970s  980s  990s  – 1000s –  1010s  1020s  1030s
Years: 997 998 99910001001 1002 1003
1000 in other calendars
Gregorian calendar1000
M
Ab urbe condita1753
Armenian calendar449
ԹՎ ՆԽԹ
Assyrian calendar5750
Balinese saka calendar921–922
Bengali calendar407
Berber calendar1950
English Regnal yearN/A
Buddhist calendar1544
Burmese calendar362
Byzantine calendar6508–6509
Chinese calendar己亥(Earth Pig)
3696 or 3636
    — to —
庚子年 (Metal Rat)
3697 or 3637
Coptic calendar716–717
Discordian calendar2166
Ethiopian calendar992–993
Hebrew calendar4760–4761
Hindu calendars
 - Vikram Samvat1056–1057
 - Shaka Samvat921–922
 - Kali Yuga4100–4101
Holocene calendar11000
Igbo calendar0–1
Iranian calendar378–379
Islamic calendar390–391
Japanese calendarChōhō 2
(長保2年)
Javanese calendar901–902
Julian calendar1000
M
Korean calendar3333
Minguo calendar912 before ROC
民前912年
Nanakshahi calendar−468
Seleucid era1311/1312 AG
Thai solar calendar1542–1543
Tibetan calendar阴土猪年
(female Earth-Pig)
1126 or 745 or −27
    — to —
阳金鼠年
(male Iron-Rat)
1127 or 746 or −26

It is one of only seven years to use just one Roman numeral. The seven are 1 AD (I), 5 AD (V), 10 AD (X), 50 AD (L), 100 AD (C), 500 AD (D), and 1000 AD (M).

Events

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Births

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