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Distribution of glaciers in North America (a) in the late twentieth century, and (b) 18,000 years ag
Romanesque capital showing Samson and the lion (13th century).
Medicinal leeches on a patient’s neck. Today leeches are sometimes used in microsurgery to prevent b
The Death of Socrates by Jacques Louis David. The eighteenth-century French painter David portrayed ...
Teaching Models: Designing Instruction for 21st Century Learners
The Tragically Hip - Ahead By A Century (Official Music Video)