Very good advice Who This is what I wwas generally saying only I was a bit upset after the last several dozen different edits I made got reverted this way and I had to fish it back out of the history to add the cites There are also things that are just reported as facts Facts are not like opinions or stories and can bee simply picked out of articles As in the Caledon example the fact that there is on representative for every  is a verifiable mathematical calculation from the ealier part of the same piece Plain facts like that dont need to go further than the article itself