I think you should double check it and see if you can find the answer if not come back and ask again
The Influence of Sea Power upon History. The Influence of Sea Power Upon History: 1660–1783 is a history of naval warfare published in 1890 by Alfred Thayer Mahan. ... Its policies were quickly adopted by most major navies, ultimately leading to the World War I naval arms race.
Answer:
The Presidential $1 Coin Act required that the cent, beginning in 2010, "shall bear an image emblematic of President Lincoln's preservation of the United States of America as a single and united country".