Daniel Greysolon, Sieur du Lhut, French soldier and explorer (born 1639)

Daniel Greysolon, Sieur du Lhut was a French soldier and explorer who is the first European known to have visited the area where the city of Duluth, Minnesota, United States, is now located and the head of Lake Superior in Minnesota. His name is sometimes anglicized as "DuLuth", and he is the namesake of Duluth, Minnesota, as well as Duluth, Georgia. Daniel Greysolon signed himself "Dulhut" on surviving manuscripts.

February 25 is the 56th day of the year in the Gregorian calendar; 309 days remain until the end of the year.