James Truslow Adams, The Founding of New England (1921)
“ At the time of the formation of the Confederacy, Massachusetts had just driven the entering wedge at Providence and absorbed New Hampshire, and was engaged in encroaching upon the northern bounds of Plymouth and Connecticut. The three smaller colonies, therefore, had everything to gain by having their existence recognized by being admitted as political equals in the league; while they were further protected by the third clause in the Articles, which guaranteed the independence of each of them, and even forbade the voluntary union of any colony with another without consent of the Confederation. ”
