Generation X or Gen X is the term that defines the category of Americans born between the mid-1960s and the early-1980s. They fall between baby boomers and millennials, number around 65 million. The name “Generation X” comes from a novel by Douglas Coupland, Generation X: Tales for an Accelerated Culture, published in 1991. Generation X sometimes is also referred to as the “latchkey generation” as they were often left unsupervised at home after school until their parents came home from work. It is defined as the in-between generation as it is sandwiched between baby boomers and millennials.