Millennium:	2nd millennium
Centuries:	10th century 11th century 12th century
Decades:	1020s 1030s 1040s 1050s 1060s
Years:	1039 1040 1041 1042 1043 1044 1045

1042 by topic
Leaders
Political entities State leaders Religious leaders
Birth and death categories
Births – Deaths
Establishments and disestablishments categories
Establishments – Disestablishments
v t e

1042 in various calendars
Gregorian calendar	1042 MXLII
Ab urbe condita	1795
Armenian calendar	491 ԹՎ ՆՂԱ
Assyrian calendar	5792
Balinese saka calendar	963–964
Bengali calendar	449
Berber calendar	1992
English Regnal year	N/A
Buddhist calendar	1586
Burmese calendar	404
Byzantine calendar	6550–6551
Chinese calendar	辛巳年 (Metal Snake) 3739 or 3532 — to — 壬午年 (Water Horse) 3740 or 3533
Coptic calendar	758–759
Discordian calendar	2208
Ethiopian calendar	1034–1035
Hebrew calendar	4802–4803
Hindu calendars
- Vikram Samvat	1098–1099
- Shaka Samvat	963–964
- Kali Yuga	4142–4143
Holocene calendar	11042
Igbo calendar	42–43
Iranian calendar	420–421
Islamic calendar	433–434
Japanese calendar	Chōkyū 3 (長久３年)
Javanese calendar	945–946
Julian calendar	1042 MXLII
Korean calendar	3375
Minguo calendar	870 before ROC 民前870年
Nanakshahi calendar	−426
Seleucid era	1353/1354 AG
Thai solar calendar	1584–1585
Tibetan calendar	阴金蛇年 (female Iron-Snake) 1168 or 787 or 15 — to — 阳水马年 (male Water-Horse) 1169 or 788 or 16

Year 1042 (MXLII) was a common year starting on Friday (link will display the full calendar) of the Julian calendar.

Events

April 19 – Emperor Michael V Kalaphates banishes his adoptive mother and co-ruler Zoë, for plotting to poison him, to the island of Principo. His announcement as sole emperor leads to a popular revolt.
April 20 – Zoë is proclaimed as empress at an assembly in Hagia Sophia, along with her sister Theodora, as co-ruler. Michael V flees to the monastery of Stoudios, but is arrested, blinded and castrated.
Zoë recalls Synodianos, governor of the Catepanate of Italy, and replaces him with George Maniakes (the disgraced head of the Sicilian campaign). All of Apulia is in the hands of the Lombard rebels.
June 11 – Zoë marries her third husband, a Byzantine bureaucrat who ascends as co-emperor Constantine IX at Constantinople. Theodora agrees to surrender her co-emperorship.
Summer – George Maniakes goes on a march through Apulia, plundering the towns that have declared for the Lombard rebels. Constantine IX recalls Maniakes to Constantinople.
George Maniakes revolts against Constantine IX and is declared emperor by his troops. He captures Pardos who has landed with an army at Otranto to take over his command.
Byzantine–Arab War: The Byzantines reconquer the fortress city of Edessa (modern Turkey), returning it to Christian hands, after 400 years of Islamic rule (approximate date).
Duklja secures its independence from the Byzantine Empire.

January 25 – Abbad I dies after a 19-year reign as independent ruler of the Taifa of Seville in Al-Andalus (modern Spain). He is succeeded by his son Abbad II (until 1069).
Casimir I, duke of Poland, succeeds in reuniting the realm which earns him the name "the Restorer". He signs a treaty with Bretislav I, duke of Bohemia, at Regensburg.^[1]
June 8 – Magnus the Good becomes king of Denmark after the death of Harthacnut. Despite a claim to the throne by Sweyn II, Magnus takes control of Denmark.
Autumn – Norman mercenaries assemble at Matera and decide to elect William Iron Arm as count of Melfi and leader of the Normans in Southern Italy.
Harald Hardrada, leader of the Varangian Guard in the Byzantine Empire, returns to Norway, possibly because of his involvement in Maniakes' revolt.
Finnish–Novgorodian War: Grand Prince Vladimir Yaroslavich wages a campaign against the Tavastians (yem).^[2]

June 8 – King Harthacnut collapses while attending a party. He dies without an heir, Edward the Confessor becomes king of England.

Births