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When to date the start of the history of the United States is debated among historians. Older textbooks started with the arrival of Christopher Columbus in 1492 and emphasized the European background ...
Militaryunit
The Army of Tennessee was the principal Confederate army operating between the Appalachian Mountains and the Mississippi River during the American Civil War. It was formed in late 1862 and fought unti ...
River
The Schuylkill River (/ˈskuːkəl/ SKOO-kəl) is a river in Pennsylvania, that William Penn chose in 1682 as one bank of the confluence upon which he founded the planned city of Philadelphia on lands pur ...
Wikipedia Article
Orange County is a county located in the U.S. state of New York. As of the 2010 census, the population was 372,813. The county seat is Goshen. The county was named in honor of William III of Orange, w ...
Definition
Quartzite is a hard, non-foliated metamorphic rock which was originally sandstone. Sandstone is converted into quartzite through heating and pressure usually related to tectonic compression within oro ...
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