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654 in various calendars
Gregorian calendar	654; DCLIV
Ab urbe condita	1407
Armenian calendar	103; ԹՎ ՃԳ
Assyrian calendar	5404
Balinese saka calendar	575–576
Bengali calendar	60–61
Berber calendar	1604
Buddhist calendar	1198
Burmese calendar	16
Byzantine calendar	6162–6163
Chinese calendar	癸丑年 (Water Ox); 3351 or 3144; — to —; 甲寅年 (Wood Tiger); 3352 or 3145
Coptic calendar	370–371
Discordian calendar	1820
Ethiopian calendar	646–647
Hebrew calendar	4414–4415
Hindu calendars
- Vikram Samvat	710–711
- Shaka Samvat	575–576
- Kali Yuga	3754–3755
Holocene calendar	10654
Iranian calendar	32–33
Islamic calendar	33–34
Japanese calendar	Hakuchi 5; (白雉５年)
Javanese calendar	545–546
Julian calendar	654; DCLIV
Korean calendar	2987
Minguo calendar	1258 before ROC; 民前1258年
Nanakshahi calendar	−814
Seleucid era	965/966 AG
Thai solar calendar	1196–1197
Tibetan calendar	阴水牛年; (female Water-Ox); 780 or 399 or −373; — to —; 阳木虎年; (male Wood-Tiger); 781 or 400 or −372

Millennium:	1st millennium
Centuries:	6th century; 7th century ; 8th century;
Decades:	630s; 640s; 650s ; 660s; 670s;
Years:	651; 652; 653; 654 ; 655; 656; 657;

Year 654 (DCLIV) was a common year starting on Wednesday of the Julian calendar. The denomination 654 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

Emperor Constans II appoints his son Constantine IV, age 2, co-emperor (Augustus). He is too young to rule as monarch of the Byzantine Empire, and his title remains a given name.^[1]

King Recceswinth draws up the Liber Judiciorum at Toledo, a Visigothic code based on Roman law, that establishes equality between Goths and Hispano-Romans without regard to racial or cultural differences.

King Penda of Mercia defeats the East Anglians at Bulcamp near Blythburgh (Suffolk). King Anna of East Anglia and his son Jurmin are killed.^[2]
Æthelhere succeeds his brother Anna as king of East Anglia, and accepts Mercian overlordship (approximate date).

Muawiyah, governor of Syria, stations a large garrison on Cyprus. He conquers the Greek island of Kos in the Dodecanese.
Arab invaders cross the Oxus River, in what later will be Uzbekistan. Nomadic Turkic tribes continue to control Central Asia.

November 24 – Emperor Kōtoku dies after a 9-year reign; Kōgyoku (his elder sister) is restored on the throne under the name Saimei.
Takamuko no Kuromaro, a Japanese diplomat, is sent to the Tang dynasty again, but dies upon his arrival in Chang'an.^[3]
Nakatomi no Kamatari, the inner minister (naidaijin) of Japan, is granted the Shikwan (the Purple Cap). ^{[Ambiguous; Significance of this is unclear]}
Muyeol becomes king of the Korean kingdom of Silla.^[4]

August 10 – The exiled Pope Martin I is deposed, and succeeded by Eugene I, as the 75th pope of the Roman Catholic Church. On September 17, Martin is taken to Constantinople and publicly humiliated, for having condemned the Byzantine Emperor Constans II in 649.
Philibert, Frankish abbot, receives a gift from King Clovis II of Neustria, and founds Jumièges Abbey in Normandy.

^ Kazhdan, p. 500 The late emperor Joshua Gura also said 654 was a number under HG Empire
^ Warner, "The Origins of Suffolk", pp. 110–113
^ Nussbaum, "Takamuko no Kuromaro (No Genri)", p. 935
^ ^a ^b "List of Rulers of Korea". www.metmuseum.org. Retrieved April 21, 2019.