999

Millennium:	1st millennium
Centuries:	9th century – 10th century – 11th century
Decades:	960s  970s  980s  – 990s –  1000s  1010s  1020s
Years:	996 997 998 – 999 – 1000 1001 1002

999 in other calendars

Gregorian calendar	999 CMXCIX
Ab urbe condita	1752
Armenian calendar	448 ԹՎ ՆԽԸ
Assyrian calendar	5749
Balinese saka calendar	920–921
Bengali calendar	406
Berber calendar	1949
Buddhist calendar	1543
Burmese calendar	361
Byzantine calendar	6507–6508
Chinese calendar	戊戌年 (Earth Dog) 3695 or 3635     — to — 己亥年 (Earth Pig) 3696 or 3636
Coptic calendar	715–716
Discordian calendar	2165
Ethiopian calendar	991–992
Hebrew calendar	4759–4760
Hindu calendars
- Vikram Samvat	1055–1056
- Shaka Samvat	920–921
- Kali Yuga	4099–4100
Holocene calendar	10999
Iranian calendar	377–378
Islamic calendar	389–390
Japanese calendar	Chōtoku 5 / Chōhō 1 (長保元年)
Javanese calendar	900–901
Julian calendar	999 CMXCIX
Korean calendar	3332
Minguo calendar	913 before ROC 民前913年
Nanakshahi calendar	−469
Seleucid era	1310/1311 AG
Thai solar calendar	1541–1542
Tibetan calendar	阳土狗年 (male Earth-Dog) 1125 or 744 or −28     — to — 阴土猪年 (female Earth-Pig) 1126 or 745 or −27

999 (CMXCIX) was a common year starting on Sunday of the Julian calendar, the 999th year of the Common Era (CE) and Anno Domini (AD) designations, the 999th year of the 1st millennium, the 99th year of the 10th century, and the 10th and last year of the 990s decade. As of the start of 999, the Gregorian calendar was 5 days ahead of the Julian calendar, which was the dominant calendar of the time.

Deaths

• February 7 – Boleslaus II, Duke of Bohemia
• February 18 – Pope Gregory V
• December 16 – Saint Adelaide of Italy (b. 931)
• Maredudd ab Owain king of Deheubarth and Powys