William Rufus Day was born on April 17, 1849, in
Ravenna,
Ohio, one of the children of Emily (née Spaulding) and Judge
Luther Day of the
Ohio Supreme Court. His maternal grandfather
Rufus P. Spalding was also a judge of the Ohio Supreme Court. and then a year at the
University of Michigan Law School. He was admitted to the bar on July 5, 1872, and settled in
Canton, Ohio, where he began practicing law in partnership with
William A. Lynch. For twenty-five years, Day worked as a criminal defense and corporate lawyer in the growing industrial town while participating in
Republican politics. During these years, Day became a good friend of
William McKinley. Day became McKinley's legal and political adviser during McKinley's candidacies for the
Congress, the
Governorship of Ohio, and the
Presidency of the United States. After he won the Presidency, McKinley appointed Day to be
Assistant Secretary of State under
Secretary of State John Sherman. Sherman was considered to be ineffective because of declining health and failing memory, and in 1898, President McKinley replaced Sherman with Day. Five months later, Day vacated his cabinet position to helm the United States Peace Commission formed to negotiate an end to the
Spanish–American War with Spain. After the Spanish–American War was declared, Day had argued that the
Spanish colonies, other than
Cuba, should be returned to
Spain, contrary to McKinley's decision that the United States should take over from Spain control of the
Philippines,
Puerto Rico, and
Guam. Day, however, negotiated peace with Spain on McKinley's harsher terms. Day was worried the terms McKinley was insisting on would be "humiliating" to Spain, and for that reason Spain would not agree to them. Ultimately Spain did submit to McKinley's "painfully harsh" terms. His final diplomatic effort was to lead the United States Peace Commission to
Paris and sign the
treaty ending the war. He was succeeded at the Department of State by
John Hay. ==Court of Appeals and Circuit Courts service==