George Washington faced many challenges regarding his teeth.
National Gallery of Art, Washington, DC
William Maloney, New York University
As we celebrate the nation's founding, it's a good time to note the heroism of George Washington. The British were a pain, to be sure, but what really caused him trouble were his teeth.
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Paul E. Smith, Purdue University
Most of us look forward to the fireworks on the Fourth of July. But did you ever wonder how the chemists create those colors that light up the night sky? Are some colors harder to create than others?
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Jeffrey Kucik, University of Arizona
Arguments over Trump's tariffs and trade wars are just the latest salvo in a heated debate that has raged since the dawn of the American republic.
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Christine Calder, Mississippi State University
Millions of Americans love the fireworks on July 4, but millions of dogs will tremble in fear. A vet explains the causes and solutions to this doggie dilemma.
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Jennifer Ladino, University of Idaho
Patriotism means pride in country, but what are we proud of? A former national park ranger suggests that visiting historic sites can remind Americans of the heritage, good and bad, that they share.
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Chip Colwell, University of Colorado Denver
An anthropologist who's researched the dispossession of Native Americans and their enduring connections to ancestral places sees the value in asking 'whose land are you on?'
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David W. Stowe, Michigan State University
Frederick Douglass used the words of Psalm 137 in his famous speech, 'What to a Slave is the Fourth of July?' For centuries, this poem has resonated with writers and composers on how humans deal with trauma.
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Jeffrey Miller, Colorado State University
The gooey treat couldn't have become popularized without the technological advances of the Industrial Revolution, which brought cheap sweets to the masses.
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Keffrelyn Brown, University of Texas at Austin; Anthony L. Brown, University of Texas at Austin
Summer is not an idyllic time for all. Two researchers who are black and are parents to two black children describe why they feel the weight of the summer.
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Jay L. Zagorsky
The Ohio State University
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