>unless you pronounce the word "istoric"
Which we do (in Britain and the rest of the English speaking world outside North America), so "an historic" it is.
e.g. from BBC:
Which we do (in Britain and the rest of the English speaking world outside North America), so "an historic" it is.
e.g. from BBC:
"An hour" on the other hand makes more sense, as that is truly a soft H.