Question: When was the astronomical clock built in the city where Karel Purkyně died?

full_context: Document 1: Mexico City: During the 19th century, an important producer of art was the Academia de San Carlos (San Carlos Art Academy), founded during colonial times, and which later became the Escuela Nacional de Artes Plásticas (the National School of Arts) including painting, sculpture and graphic design, one of UNAM's art schools. Many of the works produced by the students and faculty of that time are now displayed in the Museo Nacional de San Carlos (National Museum of San Carlos). One of the students, José María Velasco, is considered one of the greatest Mexican landscape painters of the 19th century. Porfirio Díaz's regime sponsored arts, especially those that followed the French school. Popular arts in the form of cartoons and illustrations flourished, e.g. those of José Guadalupe Posada and Manuel Manilla. The permanent collection of the San Carlos Museum also includes paintings by European masters such as Rembrandt, Velázquez, Murillo, and Rubens.
Document 2: 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 3: Karel Baxa: Karel Baxa (24 June 1863, Sedlčany – 5 January 1938, Prague) was a Czech politician in Austro-Hungarian Monarchy and then in Czechoslovakia. He is most known for his long term position as mayor of Prague ("Primátor hlavního města Prahy").
Document 4: 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 5: 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 6: Karel Purkyně: Karel Purkyně (15 March 1834, Wrocław – 5 April 1868, Prague) was a painter in the Austro-Hungarian Empire. He was one of the most prominent proponents of realism in Czech art in the second half of the 19th century.
Document 7: 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 8: 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 9: 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 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: František Tkadlík: František Tkadlík (or Franz Kadlik; 23 November 1786, Prague – 16 January 1840, Prague) was a Czech portrait painter and draftsman.
Document 12: 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 13: Peredvizhniki: During their blossoming (1870–1890), the Peredvizhniki society developed an increasingly wider scope, with more natural and free images. In contrast to the traditional dark palette of the time, they chose a lighter palette, with a freer manner in their technique. They worked for naturalness in their images, and the depiction of people's relationship with their surroundings. The society united most of the highly talented artists of the country. Among Peredvizhniki there were artists of Ukraine, Latvia, and Armenia. The society also showed the work of Mark Antokolski, Vasili Vereshchagin, and Andrei Ryabushkin. The work of the critic and democrat Vladimir Stasov was important for the development of Peredvizhniki's art. Pavel Mikhailovich Tretyakov showed the work of these artists in his gallery and gave them important material and moral support.
Document 14: Gustave Courbet: Jean Désiré Gustave Courbet (; 10 June 1819 – 31 December 1877) was a French painter who led the Realism movement in 19th-century French painting. Committed to painting only what he could see, he rejected academic convention and the Romanticism of the previous generation of visual artists. His independence set an example that was important to later artists, such as the Impressionists and the Cubists. Courbet occupies an important place in 19th-century French painting as an innovator and as an artist willing to make bold social statements through his work.
Document 15: Karel Farský: Karel Farský (26 July 1880, in Škodějov, Semily District, Bohemia – 12 June 1927, in Prague) was a Czech Roman Catholic priest, and later founder and first patriarch (1920) of the Czechoslovak Hussite Church. He was Bishop of the West Bohemia (Prague) Diocese of the Czechoslovak Church from 1923 when he became the first patriarch of the church keeping both titles of patriarch and bishop until his death in 1927. he was succeeded by Gustav Adolf Procházka who took office in 1928.
ground_truth: 1410
sub_queries: At what location did Karel Purkyně die? Answer: Prague
when was the astronomical clock in Prague built Answer: 1410