In a provocative study on comparative empire, noted historians identify periods of transition across history that reveal how and why empires emerge. Loren J. Samons on Athens and Arthur Eckstein on Rome examine classical Western empires. Nicholas Canny discusses the British experience, Paul Bushkovitch analyzes the case of imperial Russia, and Pamela Kyle Crossley studies Qing China’s beginnings. Frank Ninkovich tackles the actions of the United States at the turn of the twentieth century, which many view as imperial behavior.

What were the critical characteristics that distinguished the imperial period of the state from its pre-imperial period? When did the state develop those characteristics sufficiently to be called an empire? The authors indicate the domestic political, social, economic, or military institutions that made empire formation possible and address how intentional the transition to empire was. They investigate the actions that drove imperial consolidation and consider the international environment in which the empire formed. Kimberly Kagan provides a concluding essay that probes the historical cases for insights into policymaking and the nature of imperial power.

An Imperial Path to Modernity examines the role of liberal intellectuals in reshaping transnational ideas and internationalist aspirations into national values and imperial ambitions in early twentieth-century Japan. Perceiving the relationship between liberalism and the international world order, a cohort of Japanese thinkers conformed to liberal ideas and institutions to direct Japan’s transformation into a liberal empire in Asia. To sustain and rationalize the imperial enterprise, these Japanese liberals sought to make the domestic political stage less hostile to liberalism. Facilitating the creation of print-mediated public opinion, liberal intellectuals attempted to enlist the new middle class as a social ally in circulating liberal ideas and practices within Japan and throughout the empire.

In tracing the interconnections between liberalism and the imperial project, Jung-Sun N. Han focuses on the ideas and activities of Yoshino Sakuzo (1878–1933), who was and is remembered as a champion of prewar Japanese liberalism and Taisho democracy. Drawing insights from intellectual history, cultural studies, and international relations, this study argues that prewar Japanese liberalism grew out of the efforts of intellectuals such as Yoshino who worked to devise a transnational institution to govern the Japanese empire.

With an empire stretching across central Mexico, unmatched in military and cultural might, the Aztecs seemed poised on the brink of a golden age in the early sixteenth century. But the arrival of the Spanish changed everything. Imperialism and the Origins of Mexican Culture chronicles this violent clash of two empires and shows how modern Mestizo culture evolved over the centuries as a synthesis of Old and New World civilizations.

Colin MacLachlan begins by tracing Spain and Mesoamerica’s parallel trajectories from tribal enclaves to complex feudal societies. When the Spanish laid siege to Tenochtitlán and destroyed it in 1521, the Aztecs could only interpret this catastrophe in cosmic terms. With their gods discredited and their population ravaged by epidemics, they succumbed quickly to Spanish control—which meant submitting to Christianity. Spain had just emerged from its centuries-long struggle against the Moors, and zealous Christianity was central to its imperial vision. But Spain’s conquistadores far outnumbered its missionaries, and the Church’s decision to exclude Indian converts from priesthood proved shortsighted. Native religious practices persisted, and a richly blended culture—part Indian, part Christian—began to emerge.

The religious void left in the wake of Spain’s conquests had enduring consequences. MacLachlan’s careful analysis explains why Mexico is culturally a Mestizo country while ethnically Indian, and why modern Mexicans remain largely orphaned from their indigenous heritage—the adopted children of European history.

During his invasion of Creek Indian territory in 1813, future U.S. president Andrew Jackson discovered a Creek infant orphaned by his troops. Moved by an “unusual sympathy,” Jackson sent the child to be adopted into his Tennessee plantation household. Through the stories of nearly a dozen white adopters, adopted Indian children, and their Native parents, Dawn Peterson opens a window onto the forgotten history of adoption in early nineteenth-century America. Indians in the Family shows the important role that adoption played in efforts to subdue Native peoples in the name of nation-building.

As the United States aggressively expanded into Indian territories between 1790 and 1830, government officials stressed the importance of assimilating Native peoples into what they styled the United States’ “national family.” White households who adopted Indians—especially slaveholding Southern planters influenced by leaders such as Jackson—saw themselves as part of this expansionist project. They hoped to inculcate in their young charges U.S. attitudes toward private property, patriarchal family, and racial hierarchy.

U.S. whites were not the only ones driving this process. Choctaw, Creek, and Chickasaw families sought to place their sons in white households, to be educated in the ways of U.S. governance and political economy. But there were unintended consequences for all concerned. As adults, these adopted Indians used their educations to thwart U.S. federal claims to their homelands, setting the stage for the political struggles that would culminate in the Indian Removal Act of 1830.

The occupation of the northern half of the Chinese territories in the 1120s brought about a transformation in political communication in the south that had lasting implications for imperial Chinese history. By the late eleventh century, the Song court no longer dominated the production of information about itself and its territories. Song literati gradually consolidated their position as producers, users, and discussants of court gazettes, official records, archival compilations, dynastic histories, military geographies, and maps. This development altered the relationship between court and literati in political communication for the remainder of the imperial period. Based on a close reading of reader responses to official records and derivatives and on a mapping of literati networks, the author further proposes that the twelfth-century geopolitical crisis resulted in a lasting literati preference for imperial restoration and unified rule.

Hilde De Weerdt makes an important intervention in cultural and intellectual history by examining censorship and publicity together. In addition, she reorients the debate about the social transformation and local turn of imperial Chinese elites by treating the formation of localist strategies and empire-focused political identities as parallel rather than opposite trends.