Different collections of primary sources for the history of Bologna starting from the XVI century to the XX: postcards of Bologna, the journal "Il Comune di Bologna" from 1924 to 1939; paintings: portraits from the XVI to the XX centuries; books printed in Bologna (XVII, XVIII); pamphlets from Giulio Cesare Croce, end of the XVI century; pictures from the Cervi fund (XXth century); newspapers like the "Gazzette Bolognesi" from 1645 to 1796; laws published in Bologna (1560 - 1869), etc..