In the field of historiography—the writing of history based on a critical examination of authentic primary information sources—one area that has recently attracted attention focuses on the responses of explorers and settlers to new landscapes in order to provide insights into the transformations the landscape itself has undergone as a result of as commissioned agents of the U.S. government, were instructed to report thoroughly their findings in writing.
But in furthering this investigation some historiographers have recently recognized the need to expand their definition of what a source is. They maintain that the sources traditionally accepted as documenting the history of the Pacific Coast have too often omitted the response of Asian settlers to this territory. In part this is to recognize the value of other kinds of evidence, such as the actions of Asian settlers.
As a case in point, the role of Chinese settlers in expanding agriculture throughout the Pacific Coast territory is integral to the history of the region. Without access to the better land, Chinese settlers looked for agricultural potential in this generally arid region where other settlers did not. For example, where settlers raw material for valuable spices from a plant naturally suited to the local soil and climate.
Given their role in the labor force shaping this territory in the nineteenth century, the Chinese settlers offered more than just a new view of the land. Their vision was reinforced by specialized skills involving swamp reclamation and irrigation systems, which helped lay the foundation for the now well-known and prosperous agribusiness without attention to the input of Chinese settlers as reconstructed from their interactions with that landscape.
What this question is testing
Your task
Identify why the author included the referenced detail at that point in the passage — its function, not its content.
Common trap
Answers that merely repeat or summarize the topic of the detail instead of describing the role it plays.
Winning move
Ask what job the detail does for the paragraph, then for the passage's broader point.
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