The earliest fortifications in Pillau were made in 1550, when it was an important port of the Duchy of Prussia. During the Thirty Years' War, the Swedes occupied the harbour in the aftermath of their victory over the Polish-Lithuanian Commonwealth. King Gustavus Adolphus landed there with his reinforcements in May 1626. After the ceasefire of Altmark (1629) the Swedes retained Pillau and set out upgrading its fortifications. They constructed a star fort which remains one of the town's landmarks. The final completion of the fortress was made by Prussians in 1670.
In June 1807 Pillau was stormed by Napoleon's Grand Army. No outstanding events took place during the rest of the 19th century. Records of a Scottish 'Colony' established here in 1815 appeared in a 1890 Publication, although their authenticity is questionable.
The lighthouse was built up to a height of 31 meters, and the entire fortress was updated and rebuilt by the Prussians in 1871. Currently it is holding a naval museum.
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.