Numantia was an ancient Celtiberian settlement. It was an Iron Age hill fort, which controlled a crossing of the river Duero.
Numantia is famous for its role in the Celtiberian Wars. In the year 153 BC Numantia experienced its first serious conflict with Rome. After 20 years of hostilities, in the year 133 BC the Roman Senate gave Scipio Aemilianus Africanus the task of destroying Numantia. He laid siege to the city, erecting a nine kilometre fence supported by towers, moats, impaling rods and so on. After 13 months of siege, the Numantians decided to burn the city and die free rather than live and be slaves.
After the destruction, there are remains of occupation in the 1st century BC, with a regular street plan but without great public buildings. Its decay starts in the 3rd century, but with Roman remains still from the 4th century. Later remains from the 6th century hint of a Visigoth occupation.
The Clementinum is a historic complex of buildings in Prague. Until recently the complex hosted the National, University and Technical libraries, the City Library also being located nearby on Mariánské Náměstí. The Technical library and the Municipal library have moved to the Prague National Technical Library at Technická 6 since 2009. It is currently in use as the National Library of the Czech Republic.
Its history dates from the existence of a chapel dedicated to Saint Clement in the 11th century. A Dominican monastery was founded in the medieval period, which was transformed in 1556 to a Jesuit college. In 1622 the Jesuits transferred the library of Charles University to the Klementinum, and the college was merged with the University in 1654. The Jesuits remained until 1773, when the Klementinum was established as an observatory, library, and university by the Empress Maria Theresa of Austria.