I always found this to be extremely amusing, so much of our cultural food touchstones are less old than we think. Tempura for example, is originally Portuguese. Salmon was not used for sushi until pretty recently (needs to be flash frozen to be safe for this one). Japanese curry? From Britain! By way if India.
By way of Britain is correct. British ‘curry’ is anything cooked with ‘curry powder’ which is an entirely British invention which is not used in India. It’s this curry powder from which Japanese and Korean curries are made.