The first coffee ad? Hard to say. But certainly an early one.
'It will prevent Drowsiness, and make one fit for Busines, if one have occasion to Watch, and therefore you are not to drink of it after Supper, unless you intend to be watchful, for it will hinder sleep for 3 or 4 hours.'
It's also good for Dropsy, Gout, and Scurvy. Or so I'm told.