What was the construction year for the astronomical clock in Jiří Kejval's birthplace?
1410
Title: Jiří Novák
Passage: Jiří Novák (; born 22 March 1975) is a former Czech tennis player, who was born in Zlín, Czechoslovakia but resides nowadays in Monte Carlo, Monaco.
Title: Prague astronomical clock
Passage: 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.
Title: Pierre de Rivaz
Passage: Pierre de Rivaz (17111772) was a French clockmaker of the 18th century, from Saint-Gingolph. He built a clock in 1740 that was powered by variations in air temperature and pressure, a type of Atmos clock.
Title: Jiří Kejval
Passage: Jiří Kejval (born 30 November 1967 in Prague) is an entrepreneur, President of the Czech Olympic Committee, member of IOC and former international rower.
Jiří Kejval Prague astronomical clock