| http://www.w3.org/ns/prov#value | - There are many new touches to be found in this edition, including increased usage of satellite images, an especially helpful feature when researching the most remote regions of the earth; more than 50 updated political maps that record the impact of wars, revolutions, treaties, elections, and other events; and the use of the latest research on topics such as tectonics, oceanography, climate, and n
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