...Except it has been used to mean Britain, which was what my original point was, and which you all seem to be arguing against.

“When the Oxford History of England was launched a generation ago, “England” was still an all-embracing word. It meant indiscriminately England and Wales; Great Britain; the United Kingdom; and even the British Empire. Foreigners used it as the name of a Great Power and indeed continue to do so. Bonar Law, a Scotch Canadian, was not ashamed to describe himself as “Prime Minister of England”, as Disraeli, a Jew by birth, had done before him...Now terms have become more rigorous. The use of “England” except for a geographic area brings protests, especially from the Scotch. They seek to impose “Britain” – the name of a Roman province which perished in the fifth century and which included none of Scotland nor, indeed, all of England. I never use this incorrect term...“Great Britain” is correct and has been since 1707. It is not, however, synonymous with the United Kingdom, as the Scotch, forgetting the Irish (or, since 1922, the Northern Irish), seem to think. Again the United Kingdom does not cover the Commonwealth, the colonial empire, or India. Whatever word we use lands us in a tangle.”

A.J.P Taylor (1965) English History 1914-1945,

I've even quoted two fucking Prime Ministers!

My point was that he's old enough to have grown up with it being fairly common in the US to refer to Great Britain as 'England', as it has also been common in this country in the past.

You are incorrect about the meaning of Sic also in this context at least, because sic was added by the compiler of the quote website, which is a modern site, disraeli didn't use it.