Which of these recipes was created in the United States?

A Po-Boy sandwich (also Po' Boy, or Poor Boy) is a sandwich originally from Louisiana, United States. It consists of meat, usually roast beef, chicken fingers, or fried seafood such as shrimp, crawfish, fish, oysters, or crab. The meat is served on New Orleans French bread, known for its crispy crust and fluffy center.

Source: Wikipedia