Bagnara defensive system, planned by Barnabò Visconti in the XIV century, consisted in a moat surrounding the boundary wall of the the fortress. It is the only still complete example of medieval "castrum" in Emilia Romagna.
In 1890 a serious event happened in Conselice. On May the 20th and 21st a group of rice weeders gathered in the square Piazza Maggiore and demanded more dignified work conditions and higher salaries. The protesters headed for the municipality, but security guards reacted with violence and shot at the workers; three were killed, two women rice weeders and a man.
Between December 1944 and the 10th of April 1945, Alfonsine was a battlefield for the German army, for the Allie’s armies and for partisans; here on the Senio river the front of the war was named Linea Gotica (Gothic line), also known as Die Grüne Linie.
Roman centuries are a very distinct landscape feature of the north-east area of Via Emilia; they are the manifestation of a complex system aimed at a more efficient use of the land.
The so called Settimana Rossa (red week) was a series of revolts that – as Alessandro Luparini wrote in Settimana Rossa e dintorni – happened across Italy in June 1914, right before World War I.