The Hour of Code is a global movement reaching tens of millions of students in 180+ countries. Anyone, anywhere can organize an Hour of Code event. One-hour tutorials are available in over 45 languages. No experience needed. Ages 4 to 104.
The Potomac River /pÉËtoÊmÉk/ is located along the mid-Atlantic coast of the United States and flows into the Chesapeake Bay. The river (main stem and North Branch) is approximately 405 miles (652 km) long, with a drainage area of about 14,700 square miles (38,000 kmÂ²).n terms of area, this makes the Potomac River the fourth largest river along the Atlantic coast of the United States and the 21st largest in the United States. Over 5 million people live within the Potomac watershed.
Garrett Peck, 'The Potomac River: A History And Guide' Author, Discusses River's Landmarks, Legacy. WASHINGTON -- The Potomac River has shaped history. It's also an awfully nice place to go for a hike. Both these aspects of the river are explored in a new book. Cocktail aficionado Garrett Peck -- author of  Prohibition in Washington, DC: How Dry We Werenât and leader of D.C.'s Temperance Tour -- has turned his attentions to the Potomac in his new book, The Potomac River: A History and Guide..