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A magnifying glass can be made from a diverging lens.
New England
A region in the northeastern United States, consisting of six states (Maine, New Hampshire, Vermont, Massachusetts, Rhode Island, and Connecticut), known for its colonial history and distinct cultural identity.
Slave Trade
The slave trade was a global system of trading African slaves across continents, primarily to the Americas, greatly impacting societies and economies.
Communications Revolution
A period marked by significant changes in communication technologies, including the advent of the Internet, mobile phones, and social media, dramatically altering the way information is disseminated and consumed.
Pony Express
A fast mail service crossing the North American continent from Missouri to California that operated from April 1860 to October 1861.
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