date for invention added     I added the first five that came up for the invention being in   I remember it from school  There appears to be no dispute about the date as far as I can deduce  Do I  still leave the citation needed after  sorry cant remember the exact nowiki config  Newbie apologies  PS is there a limit to how many citations are considered enough  If s ok when its reputable can someone replace all five with this    httpwwwbbccoukhistoryhistoricfiguresdavyhumphreyshtml   BBC is considered reputable round here but it aint foolproof  ttfn