The Archivo General de Indias ('General Archive of the Indies'), housed in the ancient merchants' exchange of Seville, is the repository of extremely valuable archival documents illustrating the history of the Spanish Empire in the Americas and the Philippines. The building itself, an unusually serene and Italianate example of Spanish Renaissance architecture, was designed by Juan de Herrera. This structure and its contents were registered in 1987 by UNESCO as a World Heritage Site together with the adjoining Seville Cathedral and the Alcázar of Seville.
The origin of the structure dates to 1572 when Philip II commissioned the building from Juan de Herrera, the architect of the Escorial to house the Consulado de mercaderes of Seville. The building was begun in 1584 and was ready for occupation in 1598, according to an inscription on the north façade. Work on completing the structure proceeded through the 17th century, directed until 1629 by the archbishop Juan de Zumárraga and finished by Pedro Sanchez Falconete.
In 1785, by decree of Charles III the archives of the Council of the Indies were to be housed here, in order to bring together under a single roof all the documentation regarding the overseas empire.
The archives are rich with autograph material from the first of the Conquistadores to the end of the 19th century. Here are Miguel de Cervantes' request for an official post, the Bull of Demarcation Inter caetera of Pope Alexander VI that divided the world between Spain and Portugal, the journal of Christopher Columbus, maps and plans of the colonial American cities, in addition to the ordinary archives that reveal the month-to-month workings of the whole vast colonial machinery, which have been mined by many historians in the last two centuries.
Today the Archivo General de Indias houses some nine kilometers of shelving, in 43,000 volumes and some 80 million pages, which were produced by the colonial administration.
References:The Walls of Constantinople are a series of defensive stone walls that have surrounded and protected the city of Constantinople (today Istanbul) since its founding as the new capital of the Roman Empire by Constantine the Great. With numerous additions and modifications during their history, they were the last great fortification system of antiquity, and one of the most complex and elaborate systems ever built. They were also the largest and strongest fortification in both the ancient and medieval world.
Initially built by Constantine the Great, the walls surrounded the new city on all sides, protecting it against attack from both sea and land. As the city grew, the famous double line of the Theodosian Walls was built in the 5th century. Although the other sections of the walls were less elaborate, they were, when well-manned, almost impregnable for any medieval besieger.