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 vigorously led Congress and the American public toward progressive reforms and a strong foreign policy.

He took the view that the President as a “steward of the people” should take whatever action necessary for the public good unless expressly forbidden by law or the Constitution.” I did not usurp power,” he wrote, “but I did greatly broaden the use of executive power.”

Roosevelt’s youth differed sharply from that of the log cabin Presidents. He was born in New York City in 1858 into a wealthy family, but he too struggled–against ill health–and in his triumph became an advocate of the strenuous life.