North America 1838
Fragmentation of Central America
A united Central America had broken away from Mexico in 1823, but remained unstable. In 1837, revolution erupted in Guatemala ...
North America 1840
Mexico was more stable than Central America, but only marginally so. Under the Centralist regime which had held sway since ...
North America 1852
Opening up the West
The surge in migrants heading west put increasing pressure on the Oregon Trail. To secure the Trail, the US government ...
North America 1857
For many US citizens, the Mexican-American War had demonstrated that conquering Latin America was both easy and the natural destiny ...
North America 1860
Secession of South Carolina
By 1860, the rift between the slave states of the southern United States and the free states of the north ...
North America 1862
Battle of Antietam
Having established naval supremacy, Union forces landed on the Virginia peninsula and advanced on Richmond, only to be smashed by ...
North America 1898
By 1898, the long-running Cuban war for independence was aggravating US-Spanish relations. In February, the USS Maine sunk in an ...
South America 1899
Republic of Acre
During the 1890s, thousands of Brazilian workers traveled up the Amazon to the Bolivian-claimed region of Acre in search of ...
North America 1907
Central American instability came to a head in 1907, when Nicaragua invaded and occupied Honduras. Fed up with the endless ...
North America 1907
Great White Fleet
In 1902-03, Britain, Germany and Italy had blockaded Venezuela when it refused to repay its foreign debts. In response, US ...
South America 1908
Rio Branco's Treaties
The scramble for resources, especially rubber, in the South American interior in the late 19th and early 20th centuries saw ...
North America 1911
Mexico had been stable for four decades, most of that time under the presidency of Porfirio Diaz. But by 1910 ...
South America 1914
Opening of the Panama Canal
After ten years construction, the Panama Canal was opened in 1914, connecting the Atlantic to the Pacific via the Caribbean ...
South America 1918
South America in the Great War
When World War I broke out in Europe, the German East Asia Squadron attempted to reach the Atlantic via the ...
North America 1921
Washington Naval Conference
Following the War, the US and Japan began expanding and modernizing their fleets. To avoid an arms race between these ...
South America 1922
In 1922, Colombia and Peru signed the Salomón–Lozano Treaty to resolve their long-standing border dispute. However, Peru - which had ...
South America 1933
Bolivia and Paraguay were both left land-locked by the 19th century's wars in South America. Having lost substantial territory ...
North America 1934
The Great Depression hit the United States hard, with a nearly 45% drop in industrial production and widespread unemployment peaking ...
South America 1942
Brazil enters World War II
On 7 December 1941, Japan bombed Pearl Harbor, bringing the United States into World War II. Brazil almost immediately began ...
North America 1944
America in World War II
Following the Japanese attack on Pearl Harbor, Germany declared war on the United States, bringing its U-boat campaign to the ...