Danish photography has developed from strong participation and interest in the very beginnings of the art of photography in 1839 to the success of a considerable number of Danes in the world of photography today. Pioneers such as Mads Alstrup and Georg Emil Hansen paved the way for a rapidly growing profession during the last half of the 19th century. Today Danish photographers such as Astrid Kruse Jensen and Jacob Aue Sobol are active both at home and abroad, participating in key exhibitions around the world.