1000

Millennium:	1st millennium
Centuries:	9th century – 10th century – 11th century
Decades:	970s  980s  990s  – 1000s –  1010s  1020s  1030s
Years:	997 998 999 – 1000 – 1001 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 calendar	1000 M
Ab urbe condita	1753
Armenian calendar	449 ԹՎ ՆԽԹ
Assyrian calendar	5750
Bahá'í calendar	-844–-843
Bengali calendar	407
Berber calendar	1950
English Regnal year	N/A
Buddhist calendar	1544
Burmese calendar	362
Byzantine calendar	6508–6509
Chinese calendar	己亥年十一月廿二日 (3636/3696-11-22) — to — 庚子年十二月初三日 (3637/3697-12-3)
Coptic calendar	716–717
Ethiopian calendar	992–993
Hebrew calendar	4760–4761
Hindu calendars
- Vikram Samvat	1056–1057
- Shaka Samvat	922–923
- Kali Yuga	4101–4102
Holocene calendar	11000
Iranian calendar	378–379
Islamic calendar	390–391
Japanese calendar
Korean calendar	3333
Minguo calendar	912 before ROC 民前912年
Thai solar calendar	1543

1000 (M) of the Gregorian Calendar was the last year of the 10th century as well as the last year of the first millennium of 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.

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

• Leif Ericson becomes the first European to visit America
• Gunpowder is invented in China.
• Dhaka, Bangladesh, is started.