` ::::I apologize for my inappropriate language earlier.  As to the rest, like Halaqah says - not everything has to be cited, and the basic claim in my statement is about as close to ``common knowledge``  as one can get.  Columbia says, for instance, that  the Bantu  ``inhabit most of the continent  S of the Congo River except the extreme southwest.``  The map in this article shows more or less my point.  The revert was clearly a WP:POINT violation because I was arguing with Mel on another talk page.  Would Mel revert me if I made an unsourced edit that George W. Bush is President of the United States, or that the  Earth is the third planet from the sun, too?  `