Main Page | See live article | Alphabetical index Centuries: 2nd century - 3rd century - 4th century Decades: 230s 240s 250s 260s 270s - 280s - 290s 310s 320s 330s 340s Years: 279 280 281 283 284 - 285 - 286 287 288 289 290 Events July - Rival Roman Emperors Carinus and Diocletian face each other in the Battle of the Margus. The later emerges victorious. Births Deaths July - Carinus, Roman Emperor.\n This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.