October 18

Massachusetts and Plymouth were two separate colonies, both established by Protestant dissenters. Over time the Plymouth colony became more amenable towards other faiths, but it was not so in Massachusetts.
On this day (October 18) in 1649 the Court of Massachusetts sent the following letter to Plymouth expressing their hatred of the Baptists in the region.
Honored and beloved Brethren:
We have heretofore heard diverse Anabaptists, arisen up in your jurisdiction, and connived at; but being few, wee well hoped that it might have pleased God, by the endeavors of yourselves and faithful elders with you, to have reduced such erring men againe into the right way. But now, to our great grief, wee are credibly informed that your patient bearing with such men has produced another effect, namely, the multiplying and increasing of the same errors, and wee fear of other errors also, if timely care be not taken to supressed the same. Particularly wee understand that within a few weeks there have been in Sea Cuncke thirteen or fourteen persons rebaptized (a swift progress in one towne; yett wee heare not of any effectuall restriction is intended thereabouts). Lett it not, wee pray you, seem presumption in us to remind you hereof, nor that wee earnestly intreate you to take care as well of the suppressing of error, as the maintenance of the truth, God equally requiring the performance of both at the hands of Christian magistrates, but rather that you will consider our interest is concerned therein. The infection of such diseases [like the immersion of adult believers], being so near us, one likely to spread into our jurisdiction…. Wee are united by confederacy, by faith, by neighborhood, by fellowship in our sufferings as exiles, and by other Christian bonds, and wee hope that neither Satan nor any of his instruments [like these Anabaptists] shall, by these or any other errors, disunite us of our so neere conjunction with you, but that wee shall both equally and zealously uphold all the truths of God revealed, that wee may render a comfortable account to Him that hath sett us in our places, and betrusted us with the keeping of both tables, of which will hoping, wee cease you further trouble, and rest.
Your very loving Friends and Brethren.