Only six months after McKinley's March, 1901 inauguration, the President was assassinated and Theodore Roosevelt became the 26th President of the United States.

With the assassination of President McKinley, Theodore Roosevelt, not quite 43, became the youngest President in the Nation’s history. He brought new excitement and power to the Presidency, as he …

Nov 13, 2009 · Theodore Roosevelt unexpectedly became the 26th president of the United States in September 1901 after the assassination of William McKinley.

Note: The volumes listed below contain at least one document from the period of this presidential administration; view and search within the available documents.

Oct 27, 2025 · Publishes three new books: a history, Life of Gouverneur Morris; a biographical work, Ranch Life and the Hunting Trail; and a political collection, Essays in Practical Politics

With the assassination of President McKinley, Theodore Roosevelt, age 42, became the youngest president in the nation’s history. He brought new excitement and power to the presidency, as he …

Theodore Roosevelt Jr.[b] (October 27, 1858 – January 6, 1919), also known as Teddy or T. R., was the 26th president of the United States, serving from 1901 to 1909. Roosevelt previously was involved in …

With the assassination of President McKinley, Theodore Roosevelt, not quite 43, became the youngest President in the Nation's history. He brought new excitement and power to the Presidency, as he …

Theodore Roosevelt was the 26th President of the United States. He ascended to the Presidency on September 14, 1901, when William McKinley died of wounds he received at the hands of an …

3 days ago · Theodore Roosevelt was the 26th president of the United States (1901–09) and a writer, naturalist, and soldier. He expanded the powers of the presidency and of the federal government to …