Fried strips of potato were sold on the streets of Paris in 19th century and were the origin of french fries. Transylvanian vendors of the same time sold cookies, cream mixed with corn, and bacon. Londoners could by on the street tripe, pea soup, pea pods in butter, whelk, prawns and jellied eels. Today, street food is less local by type and at one place you van find cuisines characteristic for a country as well as food from other side of the world.