Beatlemania
During the 1960s , Beatlemania was the subject of analysis by psychologists and sociologists; a 1997 study recognised the phenomenon as an early demonstration of proto-feminist girl power . The receptions of subsequent pop acts – particularly boy bands – have drawn comparisons to Beatlemania , although none have replicated the breadth and depth of the Beatles' fandom nor its cultural impact . 
<triplet> Beatlemania <subj> 1960 <obj> point in time