Chartered companies were private commercial enterprises granted monopolies and political authority by the British government to conduct trade and administer territories overseas. The most prominent example was the English East India Company, which initially operated as a commercial organization but gradually acquired military and administrative power in India. These companies allowed Britain to expand its influence at relatively low cost by relying on private capital rather than direct government administration. In Empire, Ferguson emphasizes that the early expansion of British power was driven less by deliberate state planning than by the activities of merchants, investors, and adventurers operating under royal charters. Chartered companies, therefore, illustrate how economic interests, rather than formal government policy, often spearheaded imperial expansion.

Decolonization refers to the process by which Britain dismantled its empire during the mid-20th century, granting independence to many of its colonies. Ferguson argues that the collapse of the empire was not caused primarily by nationalist movements but by the enormous financial and military strain placed on Britain during the two world wars. The rise of new global powers, particularly the United States, also weakened Britain’s ability to maintain imperial commitments. Events such as the granting of India’s independence in 1947 and the Suez Crisis of 1956 symbolized the rapid erosion of British imperial authority. Ferguson portrays decolonization as a transformation in global power rather than simply the victory of anti-colonial resistance.

Settler colonies were territories where large numbers of British migrants established permanent communities that replicated British social and political institutions. Examples include Canada, Australia, New Zealand, and parts of North America. Ferguson explains that these colonies differed significantly from territories like India because European settlers eventually became the dominant population. Migration created societies that shared language, legal systems, and political traditions with Britain. Many of these colonies eventually gained self-government and evolved into independent democracies. In Ferguson’s interpretation, settler colonies played a crucial role in spreading British institutions globally and contributed to the empire’s enduring influence.

The Raj refers to the system of British rule established in India after the collapse of the East India Company’s authority following the Indian Mutiny of 1857. Under this arrangement, India was governed directly by the British Crown through a Viceroy and a small administrative elite. Ferguson highlights how Britain managed to control a vast population of hundreds of millions of people with only a limited number of officials, relying heavily on Indian administrators and soldiers. Infrastructure projects such as railways, telegraphs, and irrigation systems helped consolidate imperial authority, while institutions like the Indian Civil Service provided administrative continuity. Although the Raj introduced legal reforms, infrastructure, and economic development, Ferguson also notes that it excluded Indians from meaningful political representation, a contradiction that ultimately fueled the rise of nationalist movements.