June 11, 1861 - McKinley enlists as a member of E Company in the 23rd Ohio Volunteers Regiment in the Civil War.
January 21, 1871 - McKinley marries Ida Saxton.
December 25, 1871 - The McKinley’s first daughter, Katherine, is born.
April 1, 1873 - The McKinley’s second daughter, Ida, was born. Sadly, the child would pass away four months later.
March 4, 1877 - McKinley becomes a Republican Congressman in the House of Representatives.
May 27, 1884 - Although McKinley is reelected to Congress, his opponent, Jonathan Wallace contests the election. McKinley loses his seat but would regain it in the next election.
October 1, 1890 - The McKinley supported “McKinley Tariff Act” was passed by Congress. The act, which was originally supposed to benefit farmers ended up being detrimental to them. This, in turn, was a key factor in upcoming elections.
January 11, 1892 - William McKinley is inaugurated for his first term as Governor of Ohio.
March 4, 1897 - William McKinley is inaugurated as the 25th President of the United States.
July 4, 1897 - The McKinley supported “Dingley Tariff Act”, raising taxes on imports, was passed.
April 11, 1898 - With continued hostilities between Cuba and Spain, President McKinley asks Congress for the United States to intervene.
April 20, 1898 - A joint resolution is signed by President McKinley resulting in the beginning of the Spanish-American War.
May 4, 1898 - The McKinley supported, Newlands Resolution, was introduced in the House of Representatives. The resolution, which enabled the U.S. to annex Hawaii, was passed on June 15th in the House and later in the Senate on July 6.
July 7, 1898 - William McKinley signed the Newlands Resolution and the future 50th state became The Territory of Hawaii.
December 10, 1898 - The Treaty of Paris was signed, officially ending the Spanish-American War.
March 14, 1900 - The McKinley supported “Gold Standard Act” was ratified. The act made gold the standard on which paper money would be valued.
September 6, 1901 - William McKinley was shot while visiting the Pan-American Exposition in Buffalo, New York. The culprit is Leon Czolgosz.
September 14, 1901 - McKinley succumbs to his wounds and passes away in the early morning hours of the 14th.
June 6, 1905 - The construction on the McKinley Memorial Mausoleum began.
September 30, 1907 - The McKinley Memorial Mausoleum was dedicated with many keynote speakers including McKinley’s successor, Theodore Roosevelt.