As we review the events of those miserable years we can see that every step taken by the British government, from the stamp act until the closing of the port of Boston and other coercive measures, had the effect of strengthening the hands of Samuel Adams and the other revolutionary agitators. Their measures to create a feeling against England exhibited great cunning and skill. The revolutionary movement was aided by the formation of "Sons of Liberty"--a phrase taken from one of Barré's speeches,--by circular letters and committees of correspondence between the colonies, by petitions to the king winch were framed in a tone of independence not calculated to conciliate that uncompromising sovereign, by clever ingenious appeals to public patriotism, by the assembling of a "continental congress," by acts of "association" which meant the stoppage of all commercial intercourse with Great Britain. New England was the head and front of the whole revolution, and Samuel Adams was its animating spirit. Even those famous committees of correspondence between the towns of Massachusetts, which gave expression to public opinion and stimulated united action when the legislative authority was prevented by the royal governor from working, were the inspiration of this astute political manager. Prominent Virginians saw the importance of carrying out this idea on a wider field of action, and Virginia accordingly inaugurated a system of intercolonial correspondence which led to the meeting of a continental congress, and was the first practical step towards political independence of the parent state. Adams's decision to work for independence was made, or confirmed, as early as 1767, when Charles Townshend succeeded in passing the measures which were so obnoxious to the colonists, and finally led to civil war.