The church planned the celebration of the millennium of the baptism of Poland while the state authorities strictly commemorated the jubilee of the beginnings of the Polish nation.
As British-Polish historian Norman Davies noted, the Church and the PZPR had "rival, and mutually exclusive, interpretations of [Poland's baptism] significance.
As a result of the decision, it was decided the following year that the 10-złoty note designed by Józef Gosławski with the image of Mieszko I and Princess Doubravka would be minted as a 100-złoty silver commemorative coin.
By decree of the President of the Polish Government in Exile August Zaleski of 1 July 1966, it was decided to mint a commemorative Medal of the Millennium of Christian Poland.
[5] In 1966, Cardinal Primate Stefan Wyszyński traveled all over the country, visiting every region, during which he was welcomed by tens and hundreds of thousands of people.
On May 15, 1966, in St. Peter's Basilica in Rome, Bishop Vladislav Rubin, a delegate from Cardinal Primate, sent papal mass in honor of the Polish Church Province.
While reading a sermon in Gniezno, Cardinal Vyshinsky made this appeal: "I sincerely want you to firmly look at the past and present and, learning to love the history of this Christian people, look with open eyes at its Catholic essence".
The closing ceremony of the Millennium celebrations was held at the Congress of Polish Culture on 7-9 October 1966 in Warsaw, which was attended by writers, scientists and activists from all over the country.