More than 100 million Americans have high cholesterol (above 200 mg/dL), which can clog arteries and cause heart attacks and strokes. The good news is that there are a variety of time-tested strategies you can use to lower your cholesterol and decrease your risk for heart problems.
Louisiana Purchase, 1803. 1  The Louisiana Purchase encompassed 530,000,000 acres of territory in North America that the United States purchased from France in 1803 for $15 million.
Citation: Louisiana Purchase Treaty, April 30, 1803; General Records of the U.S. Government; Record Group 11; National Archives. How to use citation info. In this transaction with France, signed on April 30, 1803, the United States purchased 828,000 square miles of land west of the Mississippi River for $15 million.