Predating the Sisters of battle Release in '97, there was an already functional Sororitas setup, in the release of the 2nd Edition box set and the "Warhammer 40,000: Codex Army Lists", With this level of Nethammer knowledge I get more and more ashamed to count myself as a 40k gamer...
And I am going to start trimming the people that call 40k, Warhammer as well, as that is a regressive lesser tactically viable edition of a poor thinkers game.... :P
This information would be assistful to any true Sororitas gamer. :P
"Those of you with long memories may remember that in the distant past (1997), there was a codex called Sisters of Battle that was released alongside the 2nd edition of Warhammer 40,000. For many people, this codex encapsulated the grim darkness of the 41st millennium like no other: an army of zealous fanatics, willing to face the horrors of an uncaring galaxy and lay down their lives in the name of the Immortal God-Emperor – what could be more Warhammer 40,000? "
Really now???
No need for pedo sparkle and glitter here... :P
With this Genesis in mind, you should be easily able to see the evolution and mutagenesis of the Sororitas over the decades.
Or at least I can see the common army traits.