Assassinated at age 46, John F. Kennedy was the youngest president at the end of his tenure, and his lifespan was the shortest of any president. [4] The oldest president at the end of his tenure is Joe Biden at age 82 years, 2 months.

Theodore Roosevelt was the age of 42 years, 10 months, 18 days at his inauguration, which makes him the youngest U.S. President in history. Roosevelt became the 26 th President of the United States after the assassination of President William McKinley.

Oct 21, 2019 · The youngest president in U.S. history was Theodore Roosevelt, who became president in 1901 when he was 42 years, 10 months, and 18 days old. Roosevelt was thrust into office following the assassination of President William McKinley.

Nov 1, 2024 · The youngest president in U.S. history is Theodore Roosevelt, who took office in 1901 at age 42. Here's the full list, from youngest to oldest.

Feb 14, 2024 · Here are the youngest presidents in U.S. history: Age at inauguration: 50 years, 6 months. Millard Fillmore took office after the death of 65-year-old President Zachary Taylor, on July...

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 briskly led Congress and the American public toward …

Nov 13, 2009 · Only 42 years old when he took office, he was the youngest president in the nation’s history, and his youth and vigor immediately transformed the public image of the presidency.

Nov 25, 2022 · According to The White House, the youngest person to have ever served as president was President Theodore Roosevelt. Roosevelt, who was the 26th president from 1901 to 1909, was 42 years...

Jan 3, 2024 · Jump to the table showing all US presidents ranked from youngest to oldest. 1. Theodore Roosevelt - 42 years old. Theodore Roosevelt's sense of humor, witty quotes, and general acts of greatness have been cemented into his …

Jan 10, 2025 · At just 42 years old, Theodore Roosevelt became the youngest president in U.S. history. Following the assassination of William McKinley in 1901, Roosevelt stepped into the role with vigor, pushing for progressive reforms and conservation efforts.