The Sassi di Matera are two districts (Sasso Caveoso and Sasso Barisano) of the Italian city of Matera, Basilicata, well-known for their ancient cave dwellings inhabited since the Paleolithic period.
It have been described by Fodor's as one of the most unique landscapes in Europe. Along with the park of the Rupestrian Churches, it was named a World Heritage Site by UNESCO in 1993.
The Sassi originate from a prehistoric troglodyte settlement and are suspected to be among the first human settlements in Italy. There is evidence that people were living here as early as the year 7000 BC.
The Sassi are houses dug into the calcarenitic rock itself, which is characteristic of Basilicata and Apulia, locally called 'tufo' although it is not volcanic tuff or tufa. The streets in some parts of the Sassi often run on top of other houses. The ancient town grew up on one slope of the ravine created by the Gravina river. The ravine is known locally as 'la Gravina'.
In the 1950s, the government of Italy forcefully relocated most of the population of the Sassi to areas of the developing modern city. Beset by extreme poverty and riddled with malaria, the unhealthy living conditions were considered inhuman and an affront to the modern new Italian Republic of Alcide De Gasperi. However, people continued to live in the Sassi.
Until the late 1980s this was considered an area of poverty, since many of these houses were, and in some cases still are, uninhabitable. The current local administration, however, has become more tourism-oriented, and it has promoted the regeneration of the Sassi with the aid of the European Union, the government, and UNESCO.
References: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.