---
node: sa_modern
type: period
slug: modern_south_america
title: "Modern South America"
lead: "Modern South America, from 1826 to today, is the era of independent nations, export economies, mass immigration, and social change. The continent grew from young republics and the Brazilian empire into today's states."
published: 2026-07-13
updated: 2026-07-13
image_file: modern_south_america.jpg
image_source: "https://commons.wikimedia.org/wiki/File:Avenida_Paulista_Skyline_2012.jpg"
image_author: "JonysLowe"
image_license: "CC BY-SA 2.0"
---

## Overview

The 19th century brought export booms in guano, nitrates, coffee, beef, and rubber, along with waves of European and other immigration, especially to Argentina and Brazil. Nations consolidated their borders through diplomacy and wars.

## Key developments

The 20th century saw industrialization, populist and military governments, and deep struggles over land, democracy, and inequality. Brazil became a republic in 1889, and the continent's nations took their modern political shape.

## End and transition

Today South America's nations are democracies facing shared challenges of inequality, development, and the future of the Amazon. Their histories continue the long story that began more than thirteen thousand years ago.