1000 (M) in the Gregorian Calendar was the last year of the 10th century and the 1st millennium in the Christian era ending on December 31. According to the then used Julian Calendar, 1000 AD was a leap year starting on Monday. In the Gregorian Calendar (not invented at the time) the year would have been a common year starting on Wednesday. Another common year starting on Wednesday like it was 1800.

Millennium: 1st millennium
Centuries: 9th century10th century11th century
Decades: 970s  980s  990s  – 1000s –  1010s  1020s  1030s
Years: 997 998 99910001001 1002 1003
Centuries: 9th century · 10th century · 11th century
Decades: 970s 980s 990s 1000s 1010s 1020s 1030s
Years: 997 998 999 1000 1001 1002 1003
1000 in other calendars
Gregorian calendar1000
Ab urbe condita1753
Armenian calendar449
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
Javanese calendar901–902
Julian calendar1000
Korean calendar3333
Minguo calendar912 before ROC
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 —
(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 change

Births change