Bohemia was already Christian when the alliance was formed and so Dobrawa of Bohemia, who married Mieszko I as a part of the alliance, saw it as one of her main goals to Christianize her husband and his nation. Christianization of Poland was a condition of the alliance. Mieszko I got baptized in 966 and the nation soon followed his footsteps. Christianization of Poland is marked as the nation's birth and is considered one of the most important dates in Polish history.