His presidential reputation has gradually risen over the past few decades among historians who have noted that Grant advanced Indian policy , African American civil rights , and Civil Service reform .
Grant 's presidency was long denounced by historians as the most corrupt in U.S. history .
Grant 's presidential reputation has gradually risen over the past few decades among historians who have noted Grant Grant advanced Indian policy , African American civil rights , and Civil Service reform .
Grant 's presidency was long denounced by historians as the most corrupt in U.S. history .