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When did Europeans first begin using caffeine?
Northern Plains
A broad expanse of flat land, much of it covered in prairie, steppe, and grassland, located in the northern part of the Great Plains of the United States and Canada, often associated with agriculture and ranching.
Tribal Boundaries
The recognized geographical borders that define the territorial limits of indigenous tribes or communities.
White Migrants
Refers to individuals of European descent moving to or within countries, often associated with historical contexts of colonization or immigration for economic opportunities.
Oregon Trail
A historic east-west, large-wheeled wagon route and emigrant trail in the United States that connected the Missouri River to valleys in Oregon.
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