Unless specifically made from a gluten-free flour, yes.
No, they are baked. They are also normally toasted before eating.
English muffins
yes there is sandwich size English muffins
English muffins where made in the states, but they are also sold in England. So, technically no, they are not english.
English muffins have holes
Highland baking out of northern il delivers to all SE wisconsin businesses and they carry newlywed english muffins.
I think 'cupcakes' are small muffins but they are basically the same thing.
English muffins.
When they tried to make pancakes...and it failed. Horribly.
English muffins
English muffins
They were popular originally because an oven was not needed to bake them (they are baked on griddle pans - very few people owned ovens when the muffin was first invented). But there is really no reason for them to be "traditionally English" - they are usually referred to as English muffins just to avoid confusion with American muffins.
English style muffins which are yeast raised and cooked on a griddle, may date back to the 10th or 11th century in Wales. So yes, they did make muffins then.