History of Latvia between 400 AD - 799 AD
During the so-called Era of the Barbarian Invasion (400—800 AD) did the Slavs begin to move northwards from the steppes of Southern Russia. This migration began under the pressure of the sub-Black Sea Goths and several Tartar-Turk tribes. The Slavs moved into the woodlands inhabited by some of the extreme Eastern Balt tribes. The total area inhabited by Balts at that time was very wide and covered White Ruthenia, extending deep into Central Russia as far as Tula and Chernigov, to the regions where the rivers Dnieper, Oka, Volga and Daugava have their sources.
Under the pressure of Eastern Slays (the Russians), one Balt tribe, the Latgali, moved down the River Daugava (Western Duna) and joined their kinsfolk in Latvia, gradually pressing the Estonians further north.
Reference: Latvians.com
Previous historical period: Roman Iron Age (0-399) | Next historical period: Viking Age (800-1149)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.