1055

Millennium:	2nd millennium
Centuries:	10th century – 11th century – 12th century
Decades:	1020s  1030s  1040s  – 1050s –  1060s  1070s  1080s
Years:	1052 1053 1054 – 1055 – 1056 1057 1058

1055 in other calendars

Gregorian calendar	1055 MLV
Ab urbe condita	1808
Armenian calendar	504 ԹՎ ՇԴ
Assyrian calendar	5805
Balinese saka calendar	976–977
Bengali calendar	462
Berber calendar	2005
English Regnal year	N/A
Buddhist calendar	1599
Burmese calendar	417
Byzantine calendar	6563–6564
Chinese calendar	甲午年 (Wood Horse) 3751 or 3691     — to — 乙未年 (Wood Goat) 3752 or 3692
Coptic calendar	771–772
Discordian calendar	2221
Ethiopian calendar	1047–1048
Hebrew calendar	4815–4816
Hindu calendars
- Vikram Samvat	1111–1112
- Shaka Samvat	976–977
- Kali Yuga	4155–4156
Holocene calendar	11055
Igbo calendar	55–56
Iranian calendar	433–434
Islamic calendar	446–447
Japanese calendar	Tengi 3 (天喜３年)
Javanese calendar	958–959
Julian calendar	1055 MLV
Korean calendar	3388
Minguo calendar	857 before ROC 民前857年
Nanakshahi calendar	−413
Seleucid era	1366/1367 AG
Thai solar calendar	1597–1598
Tibetan calendar	阳木马年 (male Wood-Horse) 1181 or 800 or 28     — to — 阴木羊年 (female Wood-Goat) 1182 or 801 or 29

1055 (MLV) was a common year starting on Sunday of the Julian calendar, the 1055th year of the Common Era (CE) and Anno Domini (AD) designations, the 55th year of the 2nd millennium, the 55th year of the 11th century, and the 6th year of the 1050s decade. As of the start of 1055, the Gregorian calendar was 6 days ahead of the Julian calendar, which was the dominant calendar of the time.

1055

Events

By place

Africa

• The Almoravids conquer Aoudaghost (present-day Mauritania).

Asia

• December 18 – The Seljuk Turks capture Baghdad. Al-Malik al-Rahim is taken prisoner.

Europe

• January 11 – Theodora becomes reigning empress of the Byzantine Empire.
• October 24 – Ralph the Timid is defeated by the Welsh.
• Beginning of the campaign of Ferdinand I of Castile against al-Andalus. The king conquers Seia from the Christian allies of the Muslim taifas.

By topic

Art

• Construction on the Liaodi Pagoda in Hebei is complete. It is the tallest pagoda in Chinese history standing at a height of 84 m (275 ft) tall.

Religion

• April 13 – Pope Victor II succeeds Pope Leo IX as the 153rd pope.
• An abbey was set up at Tihany, Hungary by András (Andrew) I. The written agreement is the earliest record in the Hungarian language.

Deaths

• January 11 – Constantine IX Monomachos, emperor of the Eastern Roman Empire
• May 26 – Margrave Adalbert of Austria
• Princess Goda of England