April 1, 1621
In present-day Massachusetts, the leaders of the Plymouth colonists, acting on behalf of King James I, made a defensive alliance with Massasoit, chief of the Wampanoags. The agreement, in which both parties promised to not “doe hurt” to one another, was the first treaty between a Native American tribe and a group of colonists. According to the treaty, if a Wampanoag broke the peace, he would be sent to Plymouth for punishment; if a colonist broke the law, he would likewise be sent to the Wampanoags. The treaty lasted for 50 years.

