He first used the term «mass popular art» in the mid-1950s and used the term «Pop Art» in the 1960s to indicate that art has a basis in the popular culture of its day and takes from it a faith in the power of images. (en.wikipedia.org)
Its quintessential place in the dominant culture of the day was cemented in John Updike's 1961 short story «A&P.» (canadianbusiness.com)
In explaining the importance in Mexican culture of the Day of the Dead, Octavio Paz writes, «Tell me how you die and I will tell you who you are.» (firstthings.com)