Aurea was originally published in Dutch about 1992. The English version was first published in August, 2000. The English version was more than a simple translation, however, and incorporated many changes to the system derived from playtesting conducted with the Dutch system.
From the introduction:
Aurea is a generic system, which means that it should be applicable to every possible world-setting1. It has been used in a variety of medieval fantasy worlds, a realistic medieval world, in a cyberpunk setting, two classical era settings, in the China of Judge Dee, in a Cthulhu-like setting and a couple more.
Aurea is also quite free and depends to a certain extent on the judgement of both GM and players to work. Often, several rules coexist, and the GM is free to pick one to his liking. However, that means that in order to keep the game balanced, the GM must be fairly experienced and not afraid to fudge or to wing it. Anyway, this first English version is not meant for novice GM's, nor for novice players, unless they have a GM who can explain everything to them. It's just a statement of the system as it is used.