France invaded Mexico to install a puppet monarchy and recover debt

France, Spain, and Britain formed a joint military alliance to force Mexico to repay its debts

In October 1861, the three powers signed the Convention of London and landed troops at Veracruz that December. Britain and Spain reached settlements with Mexico and withdrew. France refused and aimed to change the regime in power in Mexico.

Some historians claim that Mexico's victory at Puebla may have prevented France from arming the Confederacy

According to some experts, Napoleon III planned to ship weapons from Mexico to Confederate forces to break the Union naval blockade. The delay caused by the Battle of Puebla meant French resources didn't reach the Texas border until after the Union Army's decisive victory at Vicksburg.

Mexico’s political chaos weakened its defense against US invasion

Mexico’s post-independence instability—marked by coups, power struggles, and weak central control—left its northern frontier vulnerable. That political fragmentation shaped Mexico’s unpreparedness during the Mexican-American War and helped enable US conquest.

Mexico admired Lincoln for opposing the war and supporting Mexican sovereignty

As a congressman, Abraham Lincoln condemned the Mexican-American War as unjust. Years later, as president, he backed Mexico’s fight against French occupation. His principled stance earned enduring respect and monuments across Mexico.

Cinco de Mayo celebrates the Mexican victory at the Battle of Puebla

On May 5, 1862, Mexican forces under General Ignacio Zaragoza repelled a larger, more well-equipped French army at Puebla. The French endured roughly 500 deaths before retreating. Though the French ultimately captured Puebla a year later, the improbable one-day victory became a symbol of national pride.

Manifest destiny fueled US aggression against Mexico

The belief that the United States had a divine right to expand westward—known as manifest destiny—justified President Polk’s push for territorial conquest. It shaped public support for the Mexican-American War and framed the invasion as national destiny.

The Aztec Empire explained

Tenochtitlán grew into a powerful city-state supported by innovations such as chinampa farming and its central role in the Triple Alliance. Spanish forces later exploited internal rifts to overthrow the empire, but the city’s legacy endures in modern Mexico City’s historic core.

The Treaty of Guadalupe Hidalgo forced Mexico to surrender over half its territory

Signed in 1848, the Treaty of Guadalupe Hidalgo ended the war but came at a steep cost for Mexico—ceding 55% of its territory, including California and the Southwest, in exchange for $15 million and vague promises to protect Mexican residents.

Hear about why Europe obeyed the Monroe Doctrine, despite American military weakness

This podcast explores the European background of the Monroe Doctrine, highlighting France's efforts to install aristocratic Bourbon monarchs in the newly independent Latin American republics—and how US opposition, British threats, and Spanish resistance ultimately disrupted those plans.

FDR's Good Neighbor policy reversed the interventionism that had grown from the Monroe Doctrine

Franklin Roosevelt pledged in his 1933 inaugural address to be a "good neighbor" to Latin America and to oppose armed intervention by American forces. His administration withdrew troops from previous occupations and signed a multilateral agreement stating that no state has the right to interfere in another's affairs.

The diplomat who implemented Monroe's policy introduced the poinsettia to the United States

Joel Roberts Poinsett, appointed as the first US minister to Mexico in 1825 following the doctrine's announcement, took cuttings of a vibrant Mexican plant called the cuetlaxochitl during his time there. Americans loved the foliage and named it after him.

John Marshall gained national prominence during the XYZ Affair

In 1797, President John Adams sent Marshall to France amid seizures of American ships. French intermediaries demanded loans and bribes before talks, and Marshall refused. Publication of the dispatches fueled the Quasi-War and elevated his reputation in the United States.

Music of the French Revolution

Listen to the melodies of the French Revolution of 1789 in this resource by the Minneapolis Institute of Art. Reconstructed by three professionals, these 10 songs from France's revolutionary era offer a glimpse into the haunting realities of such change. The songs were recreated based on musical scores included in fashion magazines from the era. French and English lyrics are provided for each song.

Enslaved and in debt: the French roots of Haiti's struggles

This investigative infographic details how Haiti was forced to pay for its freedom twice: once in blood and once in cash. In August 1791, Haiti's enslaved population launched a revolt against French colonists, successfully establishing Haiti as a...

Catalonia and the War of the Spanish Succession

The War of Spanish Succession (1702-1715) was an international and civil war that reshaped Europe’s political landscape and brought Catalonia under Spanish rule. Created by the Museum of the History of Catalonia in Barcelona, this virtual exhibit guides readers through the 13-year war with a specific eye for its effects on Catalonia. Galleries of artwork from the period on the right-hand side of the page help immerse visitors in the history.

Brazil's military dictatorship led to bossa nova's decline

In 1964, Brazil's president João Goulart was overthrown by a military coup supported by the US State Department. Scholars argue that the events led to the decline of bossa nova, with many Brazilians believing its pleasant sounds and picturesque lyrics were tone-deaf to the politically fraught moment.

Mexico City’s Day of the Dead parade is because of James Bond

The opening scenes of the 2015 film “Spectre” take place during a Day of the Dead parade in Mexico City. The movie generated so much interest that local authorities turned what was once fiction into an annual tradition, drawing thousands.

See a 3D reconstruction of Tenochtitlan, the Aztec capital that was home to an estimated population of 200,000 to 400,000.

The Americans abandoned Philadelphia to the British in 1777

While George Washington's army was encamped in Valley Forge, the British took over the capital of Philadelphia (and the colonies, at the time), including Ben Franklin's house. It wouldn't last long. This is one of a series of podcast episodes exploring the war's battles.

The “Phoney War” was an eight‑month build-up to war

From September 1939 to May 1940, following their war declaration on Germany, Britain and France entered a phase of military inaction—even as civil defence measures, naval blockades, and rationing intensified at home. Skirmishes were limited, but the decisive fighting didn't begin until Germany invaded Norway and France in April–May 1940, abruptly ending the uneasy stalemate.

The US finished what the French had started with Panama's canal

For about two decades, Suez Canal-builder and Frenchman Ferdinand de Lesseps led the project, but financial troubles forced it into the hands of the US, who completed it in 1914. This timeline, made to accompany the definitive PBS American Experience documentary about the canal, highlights major moments in its construction.

Niagara’s honeymoon tourism was influenced by Napoleon's brother

Niagara falls was once dubbed the “honeymoon capital of the world.” This tradition partially began with a visit by Napoleon's brother Jerome and his wife in 1804.

The story of Hitler's first—failed—attempt to takeover Germany

Infamous Nazi leader Adolf Hitler was appointed chancellor of Germany in 1933 after his party won the majority of seats in the country's parliament, the Reichstag. His seemingly legitimate rise to power was actually his second attempt to lead Germany after his failed coup attempt in 1923 which saw him jailed for nine months. Here's the story of that failed putsch, which took place a century ago.

The world's biggest silver producers, mapped

Mexico, with its deep history of silver mining, is the dominant leader in silver production, with over 200 million ounces (as of 2023), with China and Peru in second and third place. The precious metal is increasingly important for the electronics industry, and its price is expected to keep rising. See a chart of the biggest silver miners here.

Chihuahua, Mexico, is the birthplace of burritos

Ciudad Juárez is home to dozens of burrito restaurants and food stalls, each with its own signature preparation. In Villa Ahumada, typical fillings include chiles rellenos and local cheese.

See a timeline of the Cuban Revolution

A small rebel force toppled Batista through a series of unlikely breaks, including a decisive 1958 ambush in which Castro’s fighters seized an arms train bound for Santa Clara. This timeline charts the revolution’s causes, key turning points, and enduring legacy.

The rivalry between Alexander Hamilton and Thomas Jefferson centered on federalism—the question of how much power the federal government should hold relative to the states.

Abraham Lincoln was almost assassinated weeks before his inauguration as he traveled from Illinois to DC through Baltimore in 1861; it took two independent claims for Lincoln to be convinced the threat was real

The Mona Lisa's celebrity status and repeated restorations have obscured what made the painting so revolutionary for its time

Watch contemporary footage covering the US-backed Shah of Iran fleeing the country in the face of the 1979 Iranian Revolution

Explore an interactive map of battles from the American Revolution, along with detailed summaries of each engagement

During the French Revolution, a botanist's letter asking about "dear Rhus" (poison ivy) was intercepted, leading authorities to suspect he was conspiring with the Russians.

The concept of phantom limbs, the perception that amputated limbs are still present, dates back to a French military surgeon in the 16th century.

Quincy Jones' 'Big Band Bossa Nova' helped introduce bossa nova—a jazz-influenced Brazilian genre—to the US

In 1945, Surrealist artist Salvador Dalí and legendary animator Walt Disney began collaborating on a short film that was not completed until 2003, years after both men had died.

The US first hosted the World Cup in 1994, a tournament that lives in soccer infamy for its poor planning and the murder of Colombian player Andres Escobar, who'd accidentally scored on his own net.

'Grand Canyon of the Yellowstone,' a work by American painter Thomas Moran, inspired Congress to establish Yellowstone National Park.

For centuries, it was common to sleep in two shifts: a few hours at the beginning of the night, and a longer period beginning around midnight

Volcanic activity may have triggered the Black Death by spewing gases that led to crop failures in Europe, thus forcing the import of grain ships with plague-infested fleas.

While El Niño moves warm Pacific Ocean waters east along the equator, La Niña moves them west, shifting where rainfall will become more common for months.

The Russia-Ukraine conflict is the largest ground war in Europe since World War II in casualties, forces mobilized, and displacement of civilians.

Domino's Pizza's 30-minute delivery guarantee was responsible for the chain's 1980s surge, but it was discontinued after the company was found liable for delivery driver accidents.

Sunflowers have long been a symbol of nuclear disarmament because they can extract large amounts of radioactive cesium from soil.

Gerrymandering works through two techniques: cracking opposing voters across districts to dilute their power, and packing them into a few to waste their votes in lopsided majorities.

The syncytiotrophoblast is the outer layer of the placenta and the largest human cell, spanning an area about twice that of a king-sized bedsheet.

Lesser-known phobias include turophobia, or the fear of cheese, and nomophobia, the fear of being without your cell phone.

The term 'algorithm' originated from the Latinized name of al-Khwārizmī, a 9th-century mathematician whose works introduced Arabic numerals and the decimal-based numeral system to Europe and whose treatise 'Al-Jabr' gave algebra its name.

Learn how monoclonal antibodies, which mimic the body's antibodies, can fight diseases like Ebola.

See how fireworks are made and learn how metals like magnesium and copper are responsible for different colors.