| Country | Beginning of the school year | End of the school year |
|---|---|---|
Poland 2014/15 - beginning and end of the school year | 1 September 2014 | 26 June 2015 |
Poland 2015/16 - beginning and end of the school year | 1 September 2015 | 24 June 2016 |
Poland 2016/17 - beginning and end of the school year | 1 September 2016 | 23 June 2017 |
Poland 2017/18 - beginning and end of the school year | 4 September 2017 | 22 June 2018 |
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