The year 1767 brought another series of measures that stirred anew all the elements of discord. Charles Townshend, British chancellor of the exchequer, was called upon to draft a new fiscal program. Intent upon reducing British taxes by making more efficient the collection of duties levied on American trade, he tightened customs administration, at the same time sponsoring duties on colonial imports of paper, glass, lead and tea exported from Britain to the colonies. The so-called Townshend Acts were based on the premise that taxes imposed on goods imported by the colonies were legal while internal taxes (like the Stamp Act) were not.