Hundreds of historians and biographers have written biographies and historical accounts about the life of Ulysses S. Grant and his performance in military and presidential affairs. Very few presidential reputations have shifted as dramatically as Grant's. From the time Grant was hailed across the North as the winning general in the American Civil War his military reputation has held up fairly well. He was roundly credited as the General who "saved the Union," and although he has been the subject of some criticism over the years, this reputation largely stands intact. His presidential reputation has not always fared so well. Although his nomination as president of the United States in 1868 was considered "a foregone conclusion" and he easily won the election, his reputation as president began to suffer from congressional investigations into corruption in his administration. However, his reputation has improved in the 21st century, for his prosecution of the Ku Klux Klan and for his protection and legal support of African Americans. He is also recognized for the creation of the first Civil Service Commission, and appointment of cabinet reformers, who prosecuted the Whiskey Ring. After leaving office in 1877, Grant's reputation soared during his well-publicized diplomatic world tour. Accusations of Grant's alleged excessive drinking hounded him for most of his military and political career, and are still widely believed by the general public. Historians generally agree he drank occasionally but not often. At his death, he was seen as "a symbol of the American national identity and memory", when millions turned out for his funeral procession in 1885. Military and political reputation Grant was the most successful Union General of the Civil War, defeating six Confederate armies and capturing three. He was criticized over the Battle of Shiloh after the public learned that this victory came with unprecedented losses of life, and again during the Overland Campaign for the same reason. Despite the criticism, once Lee surrendered to Grant at Appomattox he was largely praised throughout the North as the man who had won the war. Not surprisingly, general opinion of Grant in the South was much less favorable. During his presidency Grant experienced cases of fraud and governmental mismanagement, while his attempts to reunify the South with the North while trying to protect Civil Rights for African-Americans during the Reconstruction era were met with both praise and criticism, socially and historically. Grant's reputation rose again during