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  1. PhD, Yale University, New Haven, CT (Dec. 2008)
  2. MA, Columbia University, New York, NY (May 2001)
  3. BA, Columbia College, New York, NY (May 1995)


As a historian, I aim to cross historiographical and geographical frontiers and to reconstruct the everyday experiences of people who were born without the privileges of power. I want to include their stories in the historical narratives of the "early modern" period and nineteenth century, when indigenous peoples around the world confronted European colonialism. More specifically, I focus on the economic and social lives of people who lived in Spain's imperial frontiers, including the Philippine Islands and New Mexico. I do so in order to expand the traditional geographic scope of Latin American history and to re-examine the trajectories of empires.

My current monograph project, titled “First Routes: Indigenous Commerce in Early North America,” recovers the history of native merchants who forged routes of exchange between the Rio Grande Valley and the Mesoamerican highlands from circa 1000 to the late 1800s, with a focus on the Spanish "colonial" period.

Before coming to Penn State, I was Assistant Professor of History at Miami University.

Recent Publications:

Seijas, Tatiana. 2014. Asian Slaves in Colonial Mexico: From Chinos to Indians. Cambridge Latin AmericanStudies Series. New York: Cambridge University Press.
~Winner of the Berkshire Conference of Women Historians Book Prize for 2014

Seijas, Tatiana and Pablo Sierra 2016. "The Persistence of the slave market in seventeenth-century Central Mexico."  Slavery & Abolition A Journal of Slave and Post-Slave Studies.

Seijas, Tatiana. 2016. "Inns, mules, and hardtack for the voyage: the local economy of the Manila Galleon in Mexico."  Colonial Latin America Review.

Seijas, Tatiana, and Jake Frederick. 2017. Spanish Dollars and Sister Republics: The Money That Made Mexico and the United States.  Lanham, MD: Rowman & Littlefield.


Recent Awards and Service:

American Council of Learned Sciences, Frederick Burkhardt Residential Fellowship for Recently Tenured Scholars at the National Humanities Center, 2016-17

John Carter Brown Library, Brown University, R. David Parsons Fellow, Long-Term Fellowship, 2014-15

Recent Courses:

Seijas teaches courses on Early Modern North and South America, the History of Slavery, and World History.

HIST10  World History to 1500

HIST 178  Latin America to 1820

HIST302W Undergraduate Seminar

Research Interests:

Early Modern economics; Global Spanish Empire; American Southwest; Long-distance trade; Slavery; Borderlands;
19th cent. US-Mexico relations

Dissertation Chair(s):

Stuart B. Schwartz, Yale University

Research Interests:

Latin America:
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