North Dakota has knocked Hawaii out of the top spot. See what other states boast the happiest inhabitants.
World War I
The War to End All Wars began on July 28, 1914. Read biographies of notable WWI figures, information about major battles, the weapons and uniforms of soldiers, and more.
Life Expectancy by Country
Average life expectancy ranges from 49 in Chad to 89 in Monaco.
Use this interactive metric conversion tool to convert between various units of measurement: area, volume, length/distance, cooking, time, and more.
Have Your Say
What's the best way to beat the heat during the summer?
This Day in History
What Does It Mean?
Biography of the day