Simplify the following text for a Grade 11 native English-speaking person.
Original: It was created in 1896 as a district ( an old country subdivision ) with the name Distrito Pacificador but the Constitution of 1907 changed the category to province .
Simplified: It was created in 1896 as a district ( an old country subdivision ) with the name Distrito Pacificador but the Constitution of 1907 changed all districts to provinces .