They believed that if you were not old enough to chose to be baptized, then the baptism doesn't count. So, they would re-baptize the people that were only baptized as infants
Question
Which were the two largest states that had to ratify the constitution by june of 1788?
Answer
Massachusetts: February 6, 1788. Maryland: April 28, 1788. South Carolina: May 23, 1788. New Hampshire: June 21, 1788 (With this state's ratification, the Constitution became legal.)
The main way in which the colonies developed identities independent of great Britain is that they soon were home to a slew of immigrants from around the world, who brought with them their own traditions.
The answer to your question is additive inverse