Edited sentence: Fleurs-de-lis crossed the Atlantic along with Europeans going to the New World, especially with French settlers.Following Hurricane Katrina, the fleur-de-lis has been widely used in New Orleans as a symbol of grassroots support for New Orleans' recovery.It is also used in several places whose name came from one of the French King Louis: amongst them, the flag of Louisville, Kentucky and St.Louis, Missouri where the three-petalled symbol also denotes the convergence of the Mississippi, Missouri and Illinois Rivers.On 9 July 2008, Louisiana governor Bobby Jindal signed a bill into law making the fleur-de-lis an official symbol of the state.The Acadiana region and various cities in southern Louisiana, such as Lafayette, New Orleans and Baton Rouge, also use the fleur-de-lis.The fleur-de-lis appears on the flags of Quebec and Nova Scotia in Canada, and south of the border on that of Detroit (originally a French name, though at present pronounced quite differently), New Orleans, and elsewhere.Their presence on North American flags and coats of arms usually recalls the involvement of French settlers in the history of the town or region concerned, and in some cases the persisting presence there of a population descended from such settlers