After slicing the Sourdough Focaccia which had Moroccan oil cured black olives, rosemary, thyme and oregano baked into it, I toasted the slices. Then I spread a luxurious amount of Spanish cream cheese onto one side and piled on the iceberg lettuce, two thin slices of tomatoes, thin slices of red onion and two crispy pieces of bacon.
Even though the English invented the sandwich, the Americans have elevated sandwich making into an art form with their different types of bread, toasted or not toasted, and the wide variety of ingredients they use. Unlike the English, the Americans weren't shy about being innovative and we have them to thank for the BLT.
Certain sources like to trace back the origins of BLT to Victorian times and attempt to hand over the credit for this invention to the English by saying that 'Recipes are not invented, they evolve', I think we can pretty safely say that BLT in its current state is American cuisine.
Anyway, who cares? Let people who want to take credit for things argue forever. I'm going to eat another sandwich!