Italian troops take Rome, ending the Papal States

1870Major

Italian forces breach the walls at Porta Pia on 20 September 1870 and Rome becomes Italy's capital. Pius IX refuses the new order and stays inside the Vatican.

Longest chain: The Big Bang → First stars ignite → Supernovae seed heavy elements → The Sun forms → Earth forms → First oceans → First life → Photosynthesis evolves → Great Oxidation Event → Complex cells (eukaryotes) → Multicellular life → First animals → Cambrian Explosion → First vertebrates → Jawed fish → Fish walk onto land → The amniotic egg → The Great Dying → Dinosaurs appear → Asteroid ends the dinosaurs → Early primates → Apes split from monkeys → Human line splits from chimpanzees → Walking upright → First stone tools → Genus Homo appears → Homo erectus → Control of fire → Habitual fire and cooking → Homo sapiens appears → Complex language → Natufian villages → Oldest known bread → Agriculture begins → Irrigation → Uruk and the first cities → Cylinder seals → Writing (cuneiform) → Babylonian mathematics → Babylonian astronomical diaries → Thales and natural philosophy → Trial and death of Socrates → Plato's Academy → Aristotle's Lyceum → Alexander's conquests → Death of Alexander and the Hellenistic kingdoms → Seleucid Empire founded → Parthian Empire founded → Sasanian Empire → Crisis of the Third Century → Diocletian's Tetrarchy → Diocletian's Great Persecution → Edict of Milan → Constantinople founded → Roman Empire permanently divides → Visigoths sack Rome → Fall of the Western Roman Empire → Clovis unites the Franks → Stephen II anoints Pepin and seeks Frankish aid → Donation of Pepin founds the Papal States → Cadaver Synod tries Pope Formosus → Roman nobles dominate the papacy (saeculum obscurum) → Synod of Sutri deposes rival popes → Papal election decree gives cardinals the vote → Third Lateran Council sets the two-thirds rule → Innocent III elected pope → Francis of Assisi and the Franciscans → Giotto paints the Scrovegni Chapel → Italian Renaissance → Julius II elected pope → Foundation stone of new St. Peter's laid → Leo X's St. Peter's indulgence → Protestant Reformation → Council of Trent → First Vatican Council → Italian troops take Rome, ending the Papal States