Editing 287 (section)

== Events ==
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=== By place ===
==== Roman Empire ====
* On the same day that he is made [[Roman consul|consul]], [[Maximian]] launches a campaign against an invasion of Gaul by the [[Alemanni]]. After defeating this invasion, he then invades Alemannia itself, entering across the Upper Rhine and returning to Roman territory via the Upper Danube.
* Around this time, the future emperor [[Constantius I|Constantius]] defeats and captures a Germanic king, the latter having prepared an ambush against the Romans.
* Diocletian signs a peace treaty with King [[Bahram II]] of [[Sassanid Empire|Persia]], and installs the pro-Roman Arsacid [[Tiridates III of Armenia|Tiridates III]] as king over the western portion of [[Armenia]].
* Diocletian re-organizes the [[Mesopotamia]]n frontier, and fortifies various locations including the city of [[Circesium]] (modern [[Busayrah]]) on the [[Euphrates]]. Around this time, he begins the construction of the [[Strata Diocletiana]]. Throughout his reign, similar fortification efforts are conducted on the other frontiers as well, with fortifications constructed or restored behind, on and beyond the borders. Conscription and the number of legions increase, although the legions themselves are reformed into smaller and more flexible units. At some point in time, Diocletian may have also established the late Roman military system of [[Comitatenses]] (field army units) and [[Limitanei]] (border units), but some scholars date this development to the reign of [[Constantine I]] (r. 306–337).
* September &ndash; The first [[Indiction]] begins.
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