You will also notice that I had to use the WayBackMachine to get a link to the info that was on Wikipedia in 2009 when I wrote this. The Holocaust reference and the claim by the Clinton administration of 500,000 having been ethnically cleansed have since been scrubbed from the Wikipedia page.
In this case you didn't need the WayBackMachine. The Wikipedia article for "24 March 2009, at 20:19" is included in the ordinary Wikipedia history. That version says, "Clinton compared the events of Kosovo to the Holocaust...The New York Times reported, 'On April 19, the State Department said that up to 500,000 Kosovar Albanians were missing and feared dead.'"