The Townshend Acts were passed by the British Parliament between June 15 and July 2, 1767. The key acts within the series include the Revenue Act and the Commissioners of Customs Act passed on June 29, 1767, and the Indemnity Act and the New York Restraining Act passed on July 2, 1767. These acts imposed duties on imports like glass, lead, paint, paper, and tea to raise revenue from the American colonies and assert British authority.