Rimski car Dioklecijan, u nastojanju da zaustavi bujajuću inflaciju i stabilizira ekonomiju, donosi Edikt o maksimalnim cijenama, koji, međutim, samo dodaje inflatorni pritisak zbog preniskih cijena i prevelike količine novih kovanica u opticaju.
3.9.—Osnovana Republika San Marino (tradicionalni datum).
It was the first nation to adopt Christianity as its official religion. The Journal of Ecclesiastical History – Page 268 by Cambridge University Press, Gale Group, C.W. Dugmore
The Antiquities of the Christian Church – Page 466 by Johann Christian Wilhelm Augusti, Georg Friedrich Heinrich Rheinwald, Carl Christian Friedrich Siegel