When did pennies change from 95 percent copper to only five percent?

Pennies have not changed from 95 percent copper to only five percent. The composition of the United States penny has remained 95 percent copper and five percent zinc since 1982.

How did the search for a northwest passage affect exploration in north America?

What did the factors contributed most to outbreak of Civil War?

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Tonight, a long excerpt from Antoine Coppolanis excellent biography, Richard Nixon , published by Éditions Fayard in October. I had already reviewed a good book on Nixon, by Romain Huret (https://brumes.wordpress.com/2010/01/13/de-quoi-nixon-est-il-le-nom/). Coppolanis massive work (a biography that
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Personally, Garfield reminds me of an anecdote written in an old red book. Its a story that Garfield had a classmate who couldnt win, and he was able to outperform his grades as a result of studying every day until the lights in his classmates house went out. Unfortunately, Garfield was unable to