Colonial America This link opens in a new windowColonial America, scheduled for completion in 2019, will be released in 5 modules eventually encompassing all 1,450 volumes of the CO 5 series of Colonial Office files held at The National Archives in London, plus all extracted documents associated with them. Covering the period 1606 to 1822, this unique collection of largely manuscript material from the archives of the British government is invaluable for students and researchers of all aspects of seventeenth- and eighteenth-century American history and the early-modern Atlantic world.