There is a growing literature on the histories of international organizations and activities associated with the United Nations and the League of Nations.
The essay "Marking Time: The Historiography of International Relations" by Charles S. Maier discusses the state of diplomatic history and its marginalization in the historical profession.
The essay highlights the growing interest in global history and the recommendation to collapse sharp distinctions between domestic and international politics.
International historians have expanded their research beyond traditional archives and have tapped into government agency records, colonial and postcolonial records, and records of non-government entities.
Training and awarding proper recognition in hiring and promotion decisions can expand the realm of possibility for research on the history of international society.
The field of international history encompasses political, economic, intellectual, cultural, social, and environmental histories of international society.
It explores the intersections between domestic determinants of foreign policy, transnational interactions, non-state actors, national security, diplomacy, food, population, disease, international law, human rights, and the environment.
International history highlights connections between different historical fields and brings together historians focused on various aspects of global issues.
The field of diplomatic history has expanded and the boundaries between domestic and foreign, states and non-states, and hard and soft power have blurred.
There is confusion over the precise scope and character of the term "United States in the world" and whether it refers to relations between the United States and other states or a wider embedding of U.S. history within a global context.
The essay draws examples primarily from the literature on the history of the United States in the world but argues that the conceptual framework can be applied to international history centered elsewhere.
The term "international society" has been traditionally defined as "a society of states" but is seen as too limited for contemporary international historians.
The essay proposes redefining international history as the history of "international society" and discusses the advantages and challenges of this approach.
International organizations deal with crucial issues such as nuclear disarmament, refugee relief, economic development, cultural contacts, human rights, and the environment.
Amy Sayward demonstrated the influence of development thinking on the establishment and practices of United Nations agencies, focusing on the World Bank, UN Food and Agriculture Organization, and World Health Organization.
Matthew Connelly's history of the global campaign to control world population showed the collaboration between the Population Division of USAID and the International Planned Parenthood Federation.
Nick Cullather's international history of the Green Revolution highlighted the involvement of governments, UN Food and Agriculture Organization, Rockefeller Foundation, and a transnational network of plant scientists.