Editing 199 (section)

==== Roman Empire ====
* [[Mesopotamia]] is partitioned into two [[Roman province]]s divided by the [[Euphrates]], Mesopotamia and [[Osroene]].<ref>{{cite book|last1=Boatwright|first1=Mary Taliaferro|last2=Gargola|first2=Daniel J.|last3=Talbert|first3=Richard J. A.|title=The Romans: from village to empire|year=2004|publisher=Oxford University Press|isbn=978-0-19-511875-9|page=410|url=https://books.google.com/books?id=1lBoAAAAMAAJ&q=Mesopotamia+and+Osroene+provinces+199}}</ref>
* Emperor [[Septimius Severus]] lays siege to the city-state [[Hatra]] in Central-Mesopotamia, but fails to capture the city despite breaching the walls.<ref>{{cite book|last=Kohn|first=George C.|title=Dictionary of wars|year=2007|publisher=Infobase Publishing|isbn=978-0-8160-6577-6|page=451|url=https://books.google.com/books?id=OIzreCGlHxIC&dq=Septimius+Severus+captures+Hatra+199&pg=PT463|edition=3rd}}</ref><ref>{{cite book|last=Bunson|first=Matthew|title=Encyclopedia of the Roman Empire|year=2002|publisher=Infobase Publishing|isbn=978-0-8160-4562-4|page=252|url=https://books.google.com/books?id=T5tic2VunRoC&dq=Septimius+Severus+captures+Hatra+199&pg=PA252|edition=2nd}}</ref>
* Two new [[Roman legion|legions]], [[Legio I Parthica|I Parthica]] and [[Legio III Parthica|III Parthica]], are formed as a permanent [[garrison]].<ref>{{cite book|last=Erdkamp|first=Paul|title=A Companion to the Roman Army|year=2010|publisher=John Wiley and Sons|isbn=978-1-4443-3921-5|page=272|url=https://books.google.com/books?id=1D612o_X2VYC&dq=Legio+I+Parthica+and+III+Parthica+are+formed&pg=PA272}}</ref>