On the first day of summer, June 21, flying lanterns are floated on Poznan. 11,439 paper lanterns were released by Poznań to heaven to beat the Polish record.
The first day of summer, it is called. Midsummer Night, commonly called St. John's night, which is the shortest night in the entire calendar year. It is also a festival of fire, water, sun and moon, harvest, fertility, joy, and above all love!
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