Editing 904 (section)

==== Byzantine Empire ====
* [[July 29]] &ndash; [[Sack of Thessalonica (904)|Sack of Thessalonica]]: A Muslim fleet, led by the Greek renegade [[Leo of Tripoli]], appears outside [[Thessaloniki|Thessalonica]] and begins its attack after a short and silent inspection of the fortification of the city. After attacks from the sea for two days, the [[Saracens]] are able to storm the city walls, overcome the Thessalonians' resistance and capture the city. The sacking continues for a full week, before the raiders depart for their base in the [[Levant]]. Having freed 4,000 Muslim prisoners and captured 60 ships, gaining a large loot, they carry off 22,000 men and women as slaves.<ref>Faith and Sword: A short history of Christian-Muslim conflict by Alan G. Jamieson, p. 32.</ref> 
* [[Arab–Byzantine wars|Arab–Byzantine War]]: The [[Byzantine Empire|Byzantines]] under [[Andronikos Doukas (general under Leo VI)|Andronikos Doukas]], along with [[Eustathios Argyros (general under Leo VI)|Eustathios Argyros]], campaign against the [[Abbasid Caliphate|Abbasids]] and defeat the Muslim [[garrison]]s of [[Mopsuestia]] and [[Tarsus, Mersin|Tarsus]], near [[Kahramanmaraş|Marash]] (modern [[Turkey]]).
* Emperor [[Leo VI the Wise|Leo VI]] ('''the Wise''') is forced to sign a [[peace treaty]] with [[Simeon I of Bulgaria|Simeon I]], ruler (''[[knyaz]]'') of the [[First Bulgarian Empire|Bulgarian Empire]]. All [[Slavs|Slavic]]-inhabited lands of [[Macedonia (region)|Macedonia]] and southern [[Albania]] are ceded to the Bulgarians.