According to the contract of 1254 between Saare Lääne bishop Heinrich and the High Master of the Order Eberhard von Seyne the diocesan area of Hiiumaa was divided into two parts and Käina became the center of one of them. In the middle of the 13th century a new house of God was built in the newly established parish. The building´s incinerated ruins were discovered in 1981 while clearing the nave of the church.
A stone church was erected here in 1492-1515 during the reign of Saare-Lääne bishop Johannes III Orges. It is one of the youngest and quaintest medieval sacral buildings in the Western Archipelago, a simple gothic church with a single-aisle nave. Between the years 1859-1860 Käina church was thoroughly rebuilt. The southern wall of the nave was torn down and the nave was extended with a large new added structure in the southern side of the church. At first the church´s saint was Saint Nicholas, later however Saint Martin.
On October 14, 1941 the church was hit by an incendiary bomb which, dropping in through the ceiling of the choir burned the building to the ground.
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.