The Beatles' concert at Shea Stadium on August 15, 1965, is a landmark event in the history of modern music and live entertainment. It was the first time a rock band performed at a stadium, marking a departure from smaller venues like theaters and clubs. It attracted a record-breaking crowd of 55,600 people and brought in over $300,000 in ticket sales, setting new standards for attendance and revenue. The Beatles' performance was not only a musical spectacle but also a cultural phenomenon, amplifying the British Invasion and Beatlemania while solidifying the band's place as global music icons. The event changed the scale and ambition of live music performances and was the topic of a 1966 BBC documentary "The Beatles at Shea Stadium."