743

743 in various calendars
Gregorian calendar	743; DCCXLIII
Ab urbe condita	1496
Armenian calendar	192; ԹՎ ՃՂԲ
Assyrian calendar	5493
Balinese saka calendar	664–665
Bengali calendar	150
Berber calendar	1693
Buddhist calendar	1287
Burmese calendar	105
Byzantine calendar	6251–6252
Chinese calendar	壬午年 (Water Horse); 3440 or 3233; — to —; 癸未年 (Water Goat); 3441 or 3234
Coptic calendar	459–460
Discordian calendar	1909
Ethiopian calendar	735–736
Hebrew calendar	4503–4504
Hindu calendars
- Vikram Samvat	799–800
- Shaka Samvat	664–665
- Kali Yuga	3843–3844
Holocene calendar	10743
Iranian calendar	121–122
Islamic calendar	125–126
Japanese calendar	Tenpyō 15; (天平１５年)
Javanese calendar	637–638
Julian calendar	743; DCCXLIII
Korean calendar	3076
Minguo calendar	1169 before ROC; 民前1169年
Nanakshahi calendar	−725
Seleucid era	1054/1055 AG
Thai solar calendar	1285–1286
Tibetan calendar	阳水马年; (male Water-Horse); 869 or 488 or −284; — to —; 阴水羊年; (female Water-Goat); 870 or 489 or −283

Millennium:	1st millennium
Centuries:	7th century; 8th century ; 9th century;
Decades:	720s; 730s; 740s ; 750s; 760s;
Years:	740; 741; 742; 743 ; 744; 745; 746;

Year 743 (DCCXLIII) was a common year starting on Tuesday (link will display the full calendar) of the Julian calendar. The denomination 743 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.

Events

Summer – Emperor Constantine V defeats his brother-in-law Artabasdos, who has led a two-year insurrection in an attempt to usurp the Byzantine throne. He heads for Constantinople, and captures the capital three months later. Artabasdos and his son Niketas are publicly blinded, and relegated to the monastery of Chora. Constantine renews his policy of Iconoclasm.
Constantine V reforms the old Imperial Guard of Constantinople into new elite cavalry and infantry units, called tagmata (Greek for 'the regiments'). He uses these troops against a rebellious theme in north-west Anatolia (modern Turkey), and later for offensive campaigns against Arab Muslim raiders and Bulgars.^[1]

Childeric III succeeds to the throne of the Frankish Kingdom as the last Merovingian king, (until his death in 754) following an interregnum of seven years after the throne was left vacant after the death of the previous king Theuderic IV. Power remains firmly in the hands of the major domus, currently Carloman and Pepin the Short.
Duke Odilo of Bavaria comes to the aid of Boruth, prince (knyaz) of the Carantanians, against repeated Avar incursions in present-day Austria, and is able to vassalize the Slavic principality. In exchange for Bavarian assistance, Boruth accepts his overlordship and is converted to Christianity.^[2]

King Æthelbald of Mercia joins forces with Wessex and attacks Gwent and Powys in Mid Wales (approximate date).

February 6 – Caliph Hisham ibn Abd al-Malik dies after a 19-year reign, in which the Arab expansion in Europe has been stopped and the Umayyad Caliphate has come under pressure from the Turks in Central Asia and Berbers in North Africa. He is succeeded by his nephew Al-Walid II, who has Khalid al-Qasri, former governor of Iraq, imprisoned and tortured.

Emperor Shōmu changes the law of Perpetual Ownership of Cultivated Lands. This permits aristocrats and members of the clergy to cultivate land. The new farmland will be called shoin.

In one of the final battles of the Third Tikal-Calakmul War, the city of El Peru is taken by Tikal.

743 Caspian Gates earthquake. It took place in the Caspian Gates (Gates of Alexander). The location is identified with either Derbent, Russia or Talis, Iran.^[3]

The Concilium Germanicum: First major Church synod held in the eastern parts of the Frankish Kingdom. Organized by Carloman, Mayor of the Palace of Austrasia, and presided over by Saint Boniface, who is solidified in his position as leader of the Frankish church.

^ Brian Todd Carey (2012). Road to Manzikert: "Byzantine warfare in an age of Crisis and Recovery", p. 71. ISBN 978-1-84884-215-1
^ Curta, Florin (2006). Southeastern Europe in the Middle Ages, 500-1250. Cambridge University Press, ISBN 9780521815390
^ Guidoboni, Traina, 1995, p. 120-121