Located next to the Lindenhof hill, site of the former Roman castle, St. Peter's church was built on the site of a temple to Jupiter. An early church is archaeologically attested for the 8th or 9th century. This building was replaced by an early Romanesque church around AD 1000, in turn replaced in 1230 by a late romanesque structure, parts of which survive. Rudolf Brun, first independent mayor of the town, was buried here in 1360. The nave was rebuilt in 1460 in Gothic style. Prior to the Reformation, St. Peter was the only parish church of the town, the rest being part of monasteries. The first reformed pastor, Leo Jud (1523-1542), was a friend of Zwingli and contributed to the first translation of the Bible in Zurich. Johann Kaspar Lavater was pastor from 1778-1801. His gravestone can be seen in the church wall. Theologian Adolf Keller served as pastor 1909 -1924.
The current building was consecrated in 1706 as the first church built under Protestant rule. Its congregation forms part of the Evangelical Reformed Church of the Canton of Zürich. Until 1911, the steeple was manned by a fire watch. Restoration work was carried out in 1970 to 1975. The steeple's clock face has a diameter of 8.7 m, the largest church clock face in Europe. The bells date to 1880.
The church tower was primarily used for fire police duties, and 1340 AD the first fire guard was set in duty. In the pre- and early Romanesque area, St. Peter had no church tower, i.e. the first massive three-storey tower was built in early 13th century AD. The first floor with Romanesque ribbed vault dates back to that period. In 1450 the tower was increased to 64 metres (as of today) and a pitched (helmet) roof was attached. That 24 metres high part of the tower was in 1996 re-covered with 42,000 larch shingles from the Engadine valley, since then being the only wooden roof in Zürich.
Towards the end of the 13th century a mechanical church clock was installed. In 1366 it was renewed and got one only dial that was directed towards the Limmat and only displayed the hours. Around 1460, the sense of time has been refined by half on the quarter-hour strike, and in 1538 the striking clock was replaced, and all four facades got dials. Replacements of the clock mechanism followed in 1593/94 and 1675 and 1826. In 1844 a new movement with quarter-hour strike was installed; the electrification of the work was carried out in 1873. In 1972 the balance was replaced by a fully automatic master clock in the clock room of the St. Peter's tower, and in 1996 the electrified mechanical movement of 1844 was shut down and replaced by a central computer system. The clock tower of St. Peter was for centuries Zürich's 'official local time', and all public city clocks had to conform to it. The church clock of St. Peter has the largest tower clock face in Europe, the outer diameter of each of the four church clocks measures 8.64 metres.
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.