Over the course of 240 years, United States presidents have made many integral and difficult decisions to help shape this country. Civil and international wars, economic crises, and deep-rooted bigotry are just a few major installments that presidents have had to tackle. But the expectations of the president have evolved over time—and with a more diverse and populated public to represent, it's become more difficult than ever to please everyone. Despite these increasingly challenging expectations, some presidents have certainly fared better than others. Stacker compiled data from the annual “Presidential Greatness” ranking, a survey of 170 current and recent members of the Presidents & Executive Politics Section of the American Political Science Association (APSA)—in order to find out just which ones have succeeded and which have failed. Political science professor Brandon Rottinghaus at the University of Houston and political science associate professor Justin S. Vaughn at Boise State University conducted the survey, with the results published in the New York Times. Respondents were surveyed between Dec. 22, 2017 and Jan. 16, 2018, and each expert rated every president on a 0-100 scale, with 0 being a failure, 50 as average, and 100 as great. The scores were then averaged, and the presidents are ranked lowest to highest. Continue reading to see the reasons why some presidents remain household names, while others all but fade into the background of U.S. history.