Many diseases and conditions are spread by not washing hands with soap and clean, running water. If clean, running water is not accessible, as is common in many parts of the world, use soap and available water.
Riverdale covers about three square miles in area. It has one of the highest elevations in New York City, affording it views of the Empire State Building, George Washington Bridge, Hudson River and New Jersey Palisades.
Riverdale High School is the local educational institution of Riverdale where Archie and his friends attend the 11th grade. It is based on what was Haverhill High School in Haverhill, Massachusetts. The building still stands, although it now houses Haverhill's City Hall.