Why it's the capital
Pedro de Valdivia founded the city on 12 February 1541. The Arauco War and frequent earthquakes delayed the Spanish Royal Court, but when it finally settled in Santiago in 1607, the city's place as the capital was secure.
Capital of ChileSantiago fills a basin in Chile's Central Valley, with the high Andes to the east, the Chilean Coastal Range to the west and the Mapocho River running through it.
Pedro de Valdivia founded the city on 12 February 1541. The Arauco War and frequent earthquakes delayed the Spanish Royal Court, but when it finally settled in Santiago in 1607, the city's place as the capital was secure.
Go a little north of the middle of Chile's long, thin strip and tap inland near the Andes. Santiago is at almost the same latitude as Buenos Aires, on the other side of the mountains.
Chile's National Congress meets mostly in nearby Valparaíso, but Santiago is the capital.
Sources: Wikipedia: Santiago