It looks like Bethesda Softworks community manager Matt Grandstaff has been rewriting Bethesda history in Wikipedia, removing some of the information on founder Chris Weaver's role and changing e.g. "Bethesda was acquired by Zenimax Media, Inc., co-founded by Weaver, in 1999." to "Bethesda was acquired by ZeniMax Media Inc., founded by Robert Altman, in 1999." ZeniMax was actually co-founded by Weaver and Altman.

This bit, added by Weaver, was also removed from the Wikipedia article about ZeniMax some time ago:

ZeniMax was founded in 1999 by Bethesda Softworks founder Chris Weaver and Robert A. Altman. Weaver's vision was to use Bethesda Softworks as the basis to create a hybrid media company to create cross-media properties such as PC and console games; interactive TV; mobile; web and new media. Weaver invited Altman to help him run the new company, but potential investors were wary of Altman because of his previous involvement in the BCCI scandal as well as making new investments in the field. As part of the deal, Weaver, sole owner of Bethesda Softworks, contributed his stock so that the new shell company (Zenimax) would be able to obtain funding. Robert Altman installed himself as CEO and convinced Weaver to take the position of CTO — a move that ultimately resulted in Weaver being forced out by Altman in 2002. Although still the largest shareholder, Weaver no longer has any day-to-day responsibilities with Zenimax. Altman is still CEO.