Saint John's Fair (Polish: Jarmark Świętojański) is a cultural and commercial event taking place in Poznań, traditionally in the second half of June, on the Old Market Square and adjacent streets.
The largest fair took place around 24 June, on St. John's Day, and the subject of trade was then mainly grain and wool.
The 19th century caused that the fairs also gained a social function and became the time of meetings of the Wielkopolska landowners (they were called St John's Day contracts).
The tradition was revived in 1975 on the initiative of President Andrzej Wituski (inspired by the appearance of Grand-Place in Brussels) and temporarily connected with the organization of the Poznań International Fair.
[3] At that time, state trade prevailed and one could buy scarce goods, which were absent from the shelves of shops on ordinary days.