Abstract
In 1985, the existence of a writing reform at Mari during the reign of Yahdun-Lim was demonstrated by the discovery of two duplicates : one was written in the style of the so-called " Šakkanakku " tablets, the other in the " modern " style that followed it. Forty years later, after the complete rereading of the 419 texts published in ARM 19 and the deciphering of dozens of other unpublished tablets, we'd like to take stock of what we know about this reform, at the crossroads of political will, particular international circumstances and scribal habits subject to manifestly sudden transformations.