Peter Aronsson is born into a family of medium enterprisers in Gemla, Småland.
His PhD thesis, Bönder gör politik (Peasants making politics) was successfully defended in 1992.
In his thesis, Aronsson argues that the Swedish political culture has been shaped through a local practice with roots centuries back in time.
In 1994 he published a textbook that summarized his ideas, Historiebruk - att använda det förflutna (Uses of history - to use the past).
Returning from Linköping, Peter Aronsson was employed as the Dean of the Faculty of Arts and Humanities in 2013.