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The recent mass upheavals in Tunisia, Egypt, Libya, Yemen, and Syria gave political scientists a cha
In the summer of 1793, a yellow fever epidemic struck Philadelphia, killing nearly 4,000. Tens of th
In 2006 an Iraqi tribunal convicted Saddam Hussein of murdering his own people and sentenced him to
Early in the twentieth century, when malnutrition was common, companies such as this one advertised
Holland’s six basic types of people based on vocational interests (attitudes, abilities, and ...
The population of a city has continued to grow since 1950.