Keith Windschuttle is among the last people I'd trust to assess anybody's knowledge of history. He is most well known for arguing that the Australian Stolen Generations are made up, and that the enlightened nature of white European settlers in Australia in the 1700/1800s makes it virtually impossible for them to have treated Aboriginals as poorly as is generally accepted - outright accusing most historians he's ever mentioned of being liars or political patsies. Saying that other people don't know anything about history is pretty much his default stance.