This is the main Spanish archive of the Navy and maritime activities. The Archive contains documentation of the Ministry of the Navy and other previous institutions, from the end of the 18th century to the beginning of the 20th century. Created in 1948, this archive centralised documentation of the Ministry of the Navy and of the three Maritime Departments of the Navy: Cartagena, Cadiz and El Ferrol. Its documentation, which have an approximate volume of 12 km, is essential to know the history of the Navy and of their members. But also, due to the broad competencies that the Navy has had, this allow to study issues such as the evolution of shipbuilding, fishing activities and commercial navigation.