The Blue Lacy, official breed of Texas, and Chesapeake Bay Retriever, are both dog breeds developed during which century?
Blue Lacy: The Lacy Dog or Blue Lacy Dog is a breed of working dog that originated in Texas in the mid-19th century. Chesapeake Bay Retriever:  The breed was developed in the United States Chesapeake Bay area during the 19th century.
19th century