By about the year 990, when Mieszko I officially submitted his country to the authority of the Holy See (Dagome iudex), he had transformed Poland into one of the strongest powers in central-eastern Europe.
在约990年，梅什科一世正式将他的国家置于圣座的领导下（《达戈梅指示》，Dagome iudex）时，他将波兰变成了中东欧最强大的势力之一。