I dont know what you answer would be but you can look it up in the web
Answer:
William Becknell and George Sibley.
He invented the first working escalator , hope it helps
Triangular trade is a term that describes the Atlantic trade routes between three different destinations, or countries, in Colonial Times. The Triangular Trade routes, covered England, Europe, Africa, the Americas and the West Indies. The West Indies supplied slaves, sugar, molasses and fruits to the American colonies.
