803

803 in variouscalendars
Gregorian calendar	803; DCCCIII
Ab urbe condita	1556
Armenian calendar	252; ԹՎ ՄԾԲ
Assyrian calendar	5553
Balinese saka calendar	724–725
Bengali calendar	210
Berber calendar	1753
Buddhist calendar	1347
Burmese calendar	165
Byzantine calendar	6311–6312
Chinese calendar	Nhâm ngọNiên (WaterHorse); 3500 or 3293; — to —; Quý vị niên (WaterGoat); 3501 or 3294
Coptic calendar	519–520
Discordian calendar	1969
Ethiopian calendar	795–796
Hebrew calendar	4563–4564
Hindu calendars
-Vikram Samvat	859–860
-Shaka Samvat	724–725
-Kali Yuga	3903–3904
Holocene calendar	10803
Iranian calendar	181–182
Islamic calendar	187–188
Japanese calendar	Enryaku22; ( diên lịch ２２ niên )
Javanese calendar	698–699
Julian calendar	803; DCCCIII
Korean calendar	3136
Minguo calendar	1109 beforeROC; Dân tiền 1109 niên
Nanakshahi calendar	−665
Seleucid era	1114/1115AG
Thai solar calendar	1345–1346
Tibetan calendar	Dương thủy mã niên; (male Water-Horse); 929 or 548 or −224; — to —; Âm thủy dương niên; (female Water-Goat); 930 or 549 or −223

Millennium:	1st millennium
Centuries:	8th century; 9th century; 10th century;
Decades:	780s; 790s; 800s; 810s; 820s;
Years:	800; 801; 802; 803; 804; 805; 806;

Year803(DCCCIII) was acommon year starting on Sunday(link will display the full calendar) of theJulian calendar.

Events

EmperorsNikephoros IandCharlemagnesettle their imperial boundaries in theAdriatic Sea,and sign thePax Nicephori( "Peace of Nikephoros" ). The Byzantines retain control of the coastal cities and islands inDalmatian Croatia,whileFrankishrule is accepted overIstriaand the Dalmatian hinterland.^[1]Veniceis recognized as independent by theByzantine Empire.
Summer –Bardanes Tourkos,Byzantine general (strategos), is proclaimed emperor by the troops of theAnatolic,Opsikion,ThracianandBucellarianthemes. The 'rebel' army marches toChrysopolis,a suburb ofConstantinople.After the defection of two of his trustedaides,future emperorsLeo the ArmenianandMichael the Amorian,Bardanes negotiates peace.

May–Krum,ruler (khan) of theBulgarian Empire,begins his territorial expansion and raids the Byzantine northern frontier. He leads his warriors — mostlyBulgars,Slavs,Thracians and Macedonians — across theCarpathian Mountains,over theDanube River,and throughoutTransylvania,Thrace,andMacedonia.
St. Peter Stiftskulinarium,possiblyCentral Europe's oldestrestaurant,is founded inSalzburg, Austria.^[2]

CaliphHarun al-Rashidhas his friend and vizier (secretary)Ja'far ibn Yahya beheaded,The surviving members of the influentialBarmakidfamily (Jafar's family) are imprisoned on the orders of Harun, and their property isconfiscated.
Marriage of caliphHarun al-RashidandUmm Muhammad;She was the daughter ofAbbasidprince Salih al-Miskin and Umm Abdullah, the daughter of Isa ibn Ali. They married in November-December 803 in Al-Raqqah. She had formerly been married toIbrahim ibn al-Mahdi,who had repudiated her.^[3]
The803 Mopsuestia earthquaketakes place in the vicinity ofMopsuestia,and theGulf of Alexandretta(İskenderun)^[4]

October 12– TheSynod of Clofesho(possiblyBrixworth) is held, at which theArchbishopric of Lichfieldis demoted to an ordinarybishopric,withpapalpermission obtained by KingCoenwulf of Mercia.

Du Mu,Chinesepoetand official (d.852)
Emma of Altdorf,Frankish queen and wife of KingLouis the Germanof East Francia (died 876)
Ibn 'Abd al-Hakam,Muslim historian (d.871)
Liu Congjian,Chinese governor (d.843)

^Florin Curta: Southeastern Europe in the Middle Ages, 500-1250, p. 135.
^MYTravelGuide ArchivedJuly 14, 2011, at theWayback MachineStifskeller St Peter.
^al-Tabari & Bosworth 1989,p. 326.
^Antonopoulos, 1980

al-Tabari, Muhammad Ibn Yarir; Bosworth, Clifford Edmund (1989).The History of al-Tabari Vol. 30: The 'Abbasid Caliphate in Equilibrium: The Caliphates of Musa al-Hadi and Harun al-Rashid A.D. 785-809/A.H. 169-193.Bibliotheca Persica. State University of New York Press.ISBN 978-0-88706-564-4.
Antonopoulos, J. (1980),Data from investigation of seismic Sea waves events in the Eastern Mediterranean from 500 to 1000 A.D.,Annals of Geophysics