Question: When was the astronomical clock in Jan Klapáč's birth city built?

full_context: Document 1: Vlasta Průchová: Vlasta Průchová (12 July 1926, Ružomberok – 16 June 2006, Prague) was a Czech jazz singer. From the second half of the 1940s, she gradually built up her leading position in the Czech jazz scene. Průchová was the mother of the renowned Czech-American pianist and composer Jan Hammer.
Document 2: Jan Minář: Jan Minář (born April 9, 1981 in Prague) is a professional Czech tennis player. His brother Ivo is also a professional player.
Document 3: Prague Castle: Prague Castle General information Architectural style Baroque and Mannerism Location 119 08 Prague 1, Czech Republic Current tenants Miloš Zeman, President of the Czech Republic and the First Lady Construction started 870; 1148 years ago (870) Completed 1929; 89 years ago (1929) Design and construction Architect Matthias of Arras and Peter Parler Website www.hrad.cz
Document 4: Prague astronomical clock: The oldest part of the Orloj, the mechanical clock and astronomical dial, dates back to 1410 when it was made by clockmaker Mikuláš of Kadaň and Jan Šindel, then later a professor of mathematics and astronomy at Charles University. The first recorded mention of the clock was on 9 October 1410. Later, presumably around 1490, the calendar dial was added and the clock facade was decorated with gothic sculptures.
Document 5: Cubism: The leading Cubist architects were Pavel Janák, Josef Gočár, Vlastislav Hofman, Emil Králíček and Josef Chochol. They worked mostly in Prague but also in other Bohemian towns. The best-known Cubist building is the House of the Black Madonna in the Old Town of Prague built in 1912 by Josef Gočár with the only Cubist café in the world, Grand Café Orient. Vlastislav Hofman built the entrance pavilions of Ďáblice Cemetery in 1912–1914, Josef Chochol designed several residential houses under Vyšehrad. A Cubist streetlamp has also been preserved near the Wenceslas Square, designed by Emil Králíček in 1912, who also built the Diamond House in the New Town of Prague around 1913.
Document 6: Arnold Kadlec: Arnold Kadlec (born January 8, 1959 in Most, Czechoslovakia) is a retired Czechoslovak ice hockey player. He played for the Czechoslovakian team in the 1980 and 1984 Winter Olympics, winning a silver medal in 1984.
Document 7: Computer: Many mechanical aids to calculation and measurement were constructed for astronomical and navigation use. The planisphere was a star chart invented by Abū Rayhān al-Bīrūnī in the early 11th century. The astrolabe was invented in the Hellenistic world in either the 1st or 2nd centuries BC and is often attributed to Hipparchus. A combination of the planisphere and dioptra, the astrolabe was effectively an analog computer capable of working out several different kinds of problems in spherical astronomy. An astrolabe incorporating a mechanical calendar computer and gear-wheels was invented by Abi Bakr of Isfahan, Persia in 1235. Abū Rayhān al-Bīrūnī invented the first mechanical geared lunisolar calendar astrolabe, an early fixed-wired knowledge processing machine with a gear train and gear-wheels, circa 1000 AD.
Document 8: Václav Klaus: Václav Klaus (; born 19 June 1941) is a Czech economist and politician who served as the second President of the Czech Republic from 2003 to 2013. He also served as the second and last Prime Minister of the Czech Republic, a federal subject of the Czech and Slovak Federative Republic, from July 1992 until the dissolution of Czechoslovakia in January 1993, and as the first Prime Minister of the newly-independent Czech Republic from 1993 to 1998.
Document 9: Astronomical clock: The first clock was built between 1352 and 1354 and stopped working sometime at the beginning of the 16th century. A second clock was then built by Herlin, Conrad Dasypodius, the Habrecht brothers, and others, between 1547 and 1574. This clock stopped working in 1788 or 1789 (as it apparently stopped working gradually, each component being disconnected
Document 10: Jan Šindel: Jan Šindel was born in the Bohemian town Hradec Králové probably in the 1370s. As a young man he came to Prague to study at Charles University. In 1395 or 1399 he became the Master of Arts at Prague University. In 1406 he worked at the parish school of the St. Nicolas Church in the Lesser Town of Prague. Later he worked as a teacher of mathematics in Vienna, where he also studied medicine. Then he came back to Prague and became the professor of astronomy at Charles University, where he became Doctor of Medicine and rector of the university in 1410.
Document 11: Jan Gruber: Jan Gruber (born 15 March 1984, in Prague) is a Czech rower. He competed for the Czech Republic as a member of the men's coxless four team which finished 5th at the 2008 Summer Olympics.
Document 12: Jan Klapáč: Jan Klapáč (born February 27, 1941) is a Czech former professional ice hockey player, born in Prague, Protectorate of Bohemia and Moravia. He is the grandfather of alpine skier and snowboarder Ester Ledecká.
Document 13: Štefánik's Observatory: Štefánik's Observatory (, obs. code: 541) is an astronomical observatory on Petřín hill in the center of Prague founded 1928 and named after Slovak astronomer Milan Rastislav Štefánik. Nowadays the observatory specializes above all in popularization of astronomy and related natural sciences.
Document 14: Time: The most precise timekeeping device of the ancient world was the water clock, or clepsydra, one of which was found in the tomb of Egyptian pharaoh Amenhotep I (1525–1504 BC). They could be used to measure the hours even at night, but required manual upkeep to replenish the flow of water. The Ancient Greeks and the people from Chaldea (southeastern Mesopotamia) regularly maintained timekeeping records as an essential part of their astronomical observations. Arab inventors and engineers in particular made improvements on the use of water clocks up to the Middle Ages. In the 11th century, Chinese inventors and engineers invented the first mechanical clocks driven by an escapement mechanism.
Document 15: Czechoslovakia: Several accomplished professional tennis players including Ivan Lendl, Jan Kodeš, Miloslav Mečíř, Hana Mandlíková, Martina Hingis, Martina Navratilova, Jana Novotna, Petra Kvitová and Daniela Hantuchová were born in Czechoslovakia.
ground_truth: 1410
sub_queries: What was Jan Klapáč's city of birth? Answer: Prague
when was the astronomical clock in Prague built Answer: 1410