Pete Seeger had broad influence on the development of contemporary folk music in a career that stretched from before World War II to after the turn of the 21st century. He could claim major responsibility for the folk music revival of the late '50s and early ‘60s; he wrote a handful of songs, including "If I Had a Hammer (The Hammer Song)," "Where Have All the Flowers Gone," and "Turn! Turn! Turn! (To Everything There Is a Season)," that became major hits; he single-handedly popularized the five-string banjo and literally taught a generation to play it, as well as other musical instruments through a series of instructional books and records; he played thousands of concerts in every conceivable venue, at which he demonstrated an unparalleled ability to get his audiences singing with him; and he recorded dozens of albums.