Timeline of Piacenza

The following is a timeline of the history of the city of Piacenza in the Emilia-Romagna region of Italy.

Prior to 18th century

 * 218 BCE – Placentia becomes a Roman colony.
 * 205 BCE – Placentia besieged by Carthaginian forces of Hasdrubal.
 * 200 BCE – Town sacked by Gaulish forces.
 * 187 BCE – Via Aemilia (Ariminum-Placentia road) built.
 * 271 CE – The Marcomanni defeat the Aurehan outside the city walls.
 * 375 CE – Basilica of Sant'Antonino built.
 * 450 CE – Roman Catholic Diocese of Piacenza established (approximate date).
 * 546 – "Totila reduced Piacenza by famine."
 * 903 – San Savino church construction begins.
 * 988 – Piacenza becomes an archbishopric.
 * 997 – Piacenza demoted to a bishopric; Emperor Otto III removes the city from the county of Piacenza and gives it to the bishop.
 * 1005 – Bishop Siegfried moves San Savino outside the walls and rebuilds it.
 * 1107 – San Savino rebuilt in a Romanesque style.
 * 1095 – Council of Piacenza a mixed synod of ecclesiastics and laymen.
 * 1122 – Piacenza Cathedral construction begins.
 * 1167 – Piacenza joins the Lombard League.
 * 1183 – Meeting of Lombard League held in Piacenza regarding the Peace of Constance.
 * 1226 – Piacenza joins renewed Lombard League.
 * 1229 – Piacenza participates in War of the Keys on the side of the pope and the Battle of San Cesario on the side of Bologna.
 * 1233 – Piacenza Cathedral construction completed.
 * 1235 – Guelph Annals of Piacenza finished.
 * 1254 – in power.
 * 1278 – San Francesco church construction begins.
 * 1281 – Palazzo Comunale built.
 * 1334 – Sant'Anna church built.
 * 1400 – Public clock installed (approximate date).
 * 1447 – Piacenza taken by forces of Francesco I Sforza.
 * 1471 – Hospital built.
 * 1475 – Printing press in operation.
 * 1499 – San Sisto church construction begins.
 * 1512 – Piacenza "occupied by the papal forces."
 * 1545 – Duchy of Parma and Piacenza created under Pier Luigi Farnese, Duke of Parma.
 * 1558 – Palazzo Farnese construction begins.
 * 1620 – Statue of Ranuccio I Farnese erected in the Piazza dei Cavalli.
 * 1625 – Statue of Alexander Farnese erected in the Piazza dei Cavalli.

18th–19th centuries

 * 1738 – Austrians in power per Treaty of Vienna (1738).
 * 1746 – 16 June: Austrian-Sardinian and Franco-Spanish conflict fought near city.
 * 1748 – Spaniards in power.
 * 1796 – Piacenza occupied by French forces.
 * 1801 – Piacenza becomes part of the Kingdom of Piedmont-Sardinia per Treaty of Lunéville.
 * 1804 – (theatre) opens.
 * 1811 – Biblioteca Comunale Passerini-Landi (library) established.
 * 1821
 * Political unrest.
 * (cemetery) established.
 * 1831 – Political unrest.
 * 1848 – 10 May: "Piacenza was the first Italian city to vote for union with Piedmont" during the Revolution of 1848.
 * 1859
 * Piacenza–Bologna railway begins operating; Piacenza railway station opens.
 * Piacenza becomes part of the Kingdom of Piedmont-Sardinia.
 * (provincial district) established.
 * 1860 – Alessandria–Piacenza railway begins operating.
 * 1861 – Population: 40,582.(it)
 * 1867 – Progresso newspaper begins publication.
 * 1883 – Libertà newspaper begins publication.

20th century

 * 1902 – begins operating.
 * 1903 – Museo Civico (museum) founded.
 * 1911 – Population: 38,542.
 * 1919 – Piacenza Football Club formed.
 * 1920 – (stadium) opens.
 * 1932 – (railway) begins operating.
 * 1933 – Piacenza–Cremona railway begins operating.
 * 1936 – Population: 64,210.(it)
 * 1961 – Population: 88,541.(it)
 * 1969 – Stadio Leonardo Garilli (stadium) opens.
 * 1981 – Population: 109,039.(it)
 * 1994 – Local election held; (center-left) becomes Mayor. He is the first Mayor elected by direct vote in the history of Piacenza.
 * 1995 – Local election held; (center-left) is elected President of the Province of Piacenza. He is the first President elected by direct vote in the history of Piacenza.
 * 1998 – Local election held; the lawyer (center-right) becomes Mayor. He is the first Mayor of the center-right coalition elected by direct vote in the history of Piacenza. The incumbent Mayor Giacomo Vaciago is the first Mayor to not run for a second final term.
 * 1999 – Local election held; (center-left) is elected re-President of the Province of Piacenza.

21st century

 * 2000 – La Cronaca newspaper begins publication.
 * 2002 – Local election held; (center-left) becomes Mayor. The incumbent Mayor Gianguido Guidotti is the first Mayor to lost a run-off in the direct vote.
 * 2004 – Local election held; Gian Luigi Boiardi (center-left) is elected President of the Province of Piacenza.
 * 2007 – Local election held; Roberto Reggi (center-left) is re-elected Mayor. He is the first incumbent Mayor re-elected by direct vote.
 * 2008 – Museo civico di storia naturale di Piacenza (museum) opens in the Fabbrica del Ghiaccio.
 * 2009 – Local election held; is elected President of the Province of Piacenza. He is the first President of the center-right elected by direct vote in the history of Piacenza. The incumbent Mayor Gianluigi Boiardi is the first President to lost at the first round in the direct vote.
 * 2012 – Local election held; Paolo Dosi (center-left) becomes Mayor.
 * 2013
 * Piacenza–Cremona railway closed.
 * Population: 100,843.
 * 2017 – Local election held; the lawyer Patrizia Barbieri (center-right) becomes Mayor. She is the first female Mayor elected by direct vote in the history of Piacenza. The incumbent Mayor Paolo Dosi is the second Mayor to not run for a second final term.

in Italian

 * 1757-1766 (12 volumes)
 * v.11
 * (bibliography)
 * circa 1980-2002 (6 volumes)
 * (bibliography)
 * circa 1980-2002 (6 volumes)
 * circa 1980-2002 (6 volumes)
 * circa 1980-2002 (6 volumes)
 * circa 1980-2002 (6 volumes)