History
The Astronomical Olympiad was first held in the academic year 2003/2004 in the category "EF" (for the 8th and 9th class elementary schools), and the corresponding classes of grammar schools. In the fourth year, 2006/2007, the event grew to include category "GH" (for the 6th and 7th class elementary schools), and in the fifth year, 2007/2008, the category "CD", for first– and second–year secondary school students was added.
Read more about this topic: Czech Astronomical Olympiad
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