We studied the influence of entrepreneurship education on intentions to become entrepreneurs and becoming full-time entrepreneurs with a sample of 3,775 Babson College alumni who graduated from 1985 to 2009. There was overwhelming evidence that taking two or more core entrepreneurship elective courses positively influenced students’ intention to become an entrepreneur and their becoming an actual entrepreneur both at the time of graduation and long afterward. Writing a student business plan also had a significant influence, but it was not as strong as taking two or more core courses.