Italy's layered history:
Neanderthals → Homo sapiens (40–50 kya). Etruscans (8th–3rd c. BCE), Greek colonies (Magna Graecia). Rome founded 753 BCE → Republic → Empire (27 BCE–476 CE). Law, engineering, language, Christianity spread.
Fall of West Rome → Ostrogoths, Lombards, Byzantines, Papal States, Maritime Republics (Venice, Genoa, Pisa, Amalfi), Holy Roman Empire in North. Feudal fragmentation.
Florence epicenter. Humanism, art (Leonardo, Michelangelo, Raphael), science, banking (Medici). Printing spreads ideas.
Mazzini, Cavour, Garibaldi, Victor Emmanuel II. Kingdom of Italy proclaimed 1861. Rome captured 1870. Capital moved to Rome 1871.
WWI (victory, mutilated peace). Fascism (Mussolini, 1922–43). WWII (Axis, then co-belligerent). 1946 Referendum → Republic. 1948 Constitution. EU founding member. Economic miracle, then stagnation, migration, political volatility.
Boot-shaped peninsula, Alps, Apennines, Po Valley, islands (Sicily, Sardinia). Mediterranean climate. Cuisine, art, fashion, design, automotive global leaders.