The term itself is fairly old--it was coined by sociologist Emile Durkheim in the early 1890s

The term itself is fairly recent--it was coined by sociologist Immanuel Wallerstein in the early 1970s

The term itself is not so recent--it was coined by sociologist Talcott Parsons in the early 1950s

The term itself is quite recent--it was coined by sociologist Roland Robertson in the early 1990s