Mieszko I of Poland Catholicism, Mieszko I included his Polish state in the European community of Western (Latin) Rite states, i.e. Roman Catholic states. Consequently, neither the Holy Roman Empire nor any other Catholic country could invade Poland for the purpose of Christianizing the region, and Poland could now assert its right to be treated like other Christian states. The baptism also started the spread of the Latin culture into Poland, with the first literate and educated churchmen-advisers joining Mieszko's court. The missionary bishopric started by Jordan in 968 used the Latin liturgy and was directly subordinate to the Papacy. Churches were being built
Bolesław the Forgotten calendar was in use so New Year's Day had not been changed to the first day of January. The text describes him as follows: However, there is no mention of any coronation of a Polish ruler in this period, which would have to be recorded in the German sources (as was the case with the coronations of Bolesław I and Mieszko II), probably because there was no royal insignia in the country, which had been returned to the Emperor by the well-known Bezprym earlier in the year 1031. This brief description of Bolesław in the "Wielkopolska Chronicle" is very similar