Eisenhower attended Abilene High School and graduated with the class of 1909. As a freshman, he injured his knee and developed a leg infection that extended into his groin, and which his doctor diagnosed as life-threatening. The doctor insisted that the leg be amputated but Dwight refused to allow it, and miraculously recovered, though he had to repeat his freshman year. He and brother Edgar both wanted to attend college, though they lacked the funds. They made a pact to take alternate years at college while the other worked to earn the tuitions.

In what year did Eisenhower graduate from high school?