I’m not aware of the punctuation mark going outside the quotation being, “British style,” and I’m struggling to find other references to it being so. It’s certa

I’m not aware of the punctuation mark going outside the quotation being, “British style,” and I’m struggling to find other references to it being so. It’s certainly not what is done in most British typography. Putting the punctuation mark inside the quotation marks has been a thing ever since printing, and I always thought it was done to avoid have an isolated full stop on a printing plate, which could be damaged relatively easily., but this may be a retroactive justification.