title: Jeffrey Mass
text: # Jeffrey Mass
  
  Jeffrey Paul Mass (June 29, 1940 – March 30, 2001) was an American academic, historian, author and Japanologist. He was Yamato Ichihashi Professor of Japanese History at Stanford University.
  
  ## Early life
  
  Mass was born in New York City in 1940. He earned a bachelor's degree in history from Hamilton College in 1961, a master's degree in history from New York University in 1965, and he received his doctorate in history from Yale in 1971.
  
  ## Career
  
  Mass joined the Stanford University faculty in 1973. He was made a full professor in 1981.
  
  After 1987, he spent the late spring and summer of each year teaching at Oxford University.
  
  During many years, his research was supported by a Fulbright Research Fellowship, a Mellon Fellowship and a Guggenheim Fellowship, and other grants.
  
  ## Selected works
  
  In an overview of writings by and about Mass, OCLC/WorldCat lists roughly 30+ works in 110+ publications in 3 languages and 5,000+ library holdings.
  
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  * Warrior government in early medieval Japan: a study of the Kamakura Bakufu, shugo and jitō, 1974
  * The Kamakura bakufu: a study in documents, 1976
  * The development of Kamakura rule, 1180-1250: a history with documents, 1979
  * Court and Bakufu in Japan: essays in Kamakura history, 1982
  * The Bakufu in Japanese history, 1985
  * Lordship and inheritance in Early Medieval Japan: a study of the Kamakura Soryō system, 1989
  * Antiquity and anachronism in Japanese history, 1992
  * The origins of Japan's medieval world: courtiers, clerics, warriors, and peasants in the fourteenth century, 1997
  * Yoritomo and the founding of the first Bakufu: the origins of dual government in Japan, 1999
  