1204

Millennium:	2nd millennium
Centuries:	12th century – 13th century – 14th century
Decades:	1170s 1180s 1190s – 1200s – 1210s 1220s 1230s
Years:	1201 1202 1203 – 1204 – 1205 1206 1207

1204 by topic
Politics
State leaders – Sovereign states
Birth and death categories
Births – Deaths
Establishments and disestablishments categories
Establishments – Disestablishments
Art and literature
1204 in poetry

1204 in other calendars
Gregorian calendar	1204 MCCIV
Ab urbe condita	1957
Armenian calendar	653 ԹՎ ՈԾԳ
Assyrian calendar	5954
Bengali calendar	611
Berber calendar	2154
English Regnal year	5 Joh. 1 – 6 Joh. 1
Buddhist calendar	1748
Burmese calendar	566
Byzantine calendar	6712–6713
Chinese calendar	癸亥年 (Water Pig) 3900 or 3840 — to — 甲子年 (Wood Rat) 3901 or 3841
Coptic calendar	920–921
Discordian calendar	2370
Ethiopian calendar	1196–1197
Hebrew calendar	4964–4965
Hindu calendars
- Vikram Samvat	1260–1261
- Shaka Samvat	1126–1127
- Kali Yuga	4305–4306
Holocene calendar	11204
Igbo calendar	204–205
Iranian calendar	582–583
Islamic calendar	600–601
Japanese calendar	Kennin 4 / Genkyū 1 (元久元年)
Julian calendar	1204 MCCIV
Korean calendar	3537
Minguo calendar	708 before ROC 民前708年
Thai solar calendar	1746–1747

Wikimedia Commons has media related to 1204.

Year 1204 (MCCIV) was a leap year starting on Thursday (link will display the full calendar) of the Julian calendar.

Events

January – Four-year-old Guttorm is proclaimed King of Norway; his "reign" ends with his death a few months later.
January 28 – Byzantine emperor Alexios IV Angelos is overthrown in a revolution.
February 5 – Alexios V Doukas is proclaimed Byzantine emperor.

Conquest of Constantinople by the Crusaders

April 13 – Fourth Crusade: The Crusaders take Constantinople by storm, and pillage the city for 3 days. Forces of the Republic of Venice seize the antique statues that will become the horses of Saint Mark.
May 16 – Baldwin, Count of Flanders is crowned emperor of the Latin Empire a week after his election by the members of the Fourth Crusade.
Theodore I Laskaris flees to Nicaea after the capture of Constantinople, and establishes the Empire of Nicaea; Byzantine successor states are also established in Epirus and Trebizond.
Boniface I, Marquess of Montferrat, a leader of the Fourth Crusade, founds the Kingdom of Thessalonica.
The writings of French theologian Amalric of Bena are condemned by the University of Paris and Pope Innocent III.
Tsar Kaloyan is recognized as king of Bulgaria by Pope Innocent III after the creation of the Bulgarian Uniate church.
Valdemar II of Denmark, is recognized as king in Norway.
Angers and Normandy are captured by Philip II of France.
The Cistercian convent of Port-Royal-des-Champs is established.
The district of Cham becomes subject to Bavaria.
Hermann I, Landgrave of Thuringia submits to Philip of Swabia.
Beaulieu Abbey is founded.
The Channel Islands of Guernsey and Jersey decide, after a plebiscite of wealthy land owners, to remain with the English crown after Normandy is recaptured by Philip II of France.