United States

Cahokia and the Mississippian Culture — North America's forgotten city

The Mississippian Culture and its capital Cahokia (700–1600 CE) was the most complex pre-Columbian civilisation north of Mexico — Cahokia near modern St Louis was home to 20,000 people at its peak around 1100 CE, larger than contemporary London, yet was abandoned and forgotten before Europeans arrived.

American Revolutionary War

The thirteen colonies fought and won independence from Great Britain, creating the United States.

Declaration of Independence

The thirteen American colonies declared independence from Britain, founding a new nation.

United States — rise to global superpower

The United States grew from thirteen Atlantic colonies (1776) to the world's dominant military, economic, and cultural power within two centuries — history's most rapid rise to superpower status.

Battle of Saratoga — the American Revolution's turning point

The October 1777 American victory over General Burgoyne's British army that convinced France to enter the war as America's ally.

Battle of Yorktown — America's independence secured

The Siege of Yorktown (October 1781) was the final major campaign of the American Revolutionary War — Cornwallis's trapped British army surrendered to Washington and Rochambeau, making American independence inevitable.

US Constitution Ratified

The world's first written national constitution established the federal framework still in use today.

Battle of New Orleans — America's frontier legend

The Battle of New Orleans (8 January 1815) was Andrew Jackson's stunning victory over a veteran British army — fought after the war had already ended by treaty, it made Jackson a national hero and shaped American frontier mythology for a generation.

Battle of the Alamo — remember the Alamo

The siege and Battle of the Alamo (23 February – 6 March 1836) was the thirteen-day defence of a Texian garrison in San Antonio against the Mexican army under Santa Anna — every defender was killed, but the massacre became the rallying cry for Texan independence.

First Battle of Bull Run — the war will not be short

The First Battle of Bull Run (21 July 1861) shattered Northern assumptions that the Civil War would be brief — a Confederate victory sent Union forces and Washington civilians fleeing back to the capital, revealing the war as something far larger and bloodier than anyone had planned.

Confederate States of America — the slaveholders' republic

The Confederate States of America (1861–1865 CE) was the breakaway nation of eleven southern US states that fought for the right to maintain slavery — the deadliest war in American history was fought to decide whether it would survive, and its defeat redefined the United States.

Battle of Antietam — bloodiest single day in American history

The Battle of Antietam on 17 September 1862 was the bloodiest single day in American military history — over 22,000 casualties — and though tactically inconclusive, it gave Lincoln the context to issue the Emancipation Proclamation.

Siege of Vicksburg — the Confederacy split in two

The 47-day Siege of Vicksburg (May–4 July 1863), captured by Ulysses Grant, gave the Union full control of the Mississippi River, splitting the Confederacy in two and opening the Deep South to invasion.

Battle of Gettysburg — the Confederacy's high water mark

The July 1863 three-day battle in Pennsylvania, the largest battle of the American Civil War and the turning point against Confederate General Lee's invasion of the North.

Battle of Gettysburg — the turning point of the Civil War

The three-day Battle of Gettysburg (1–3 July 1863) was the bloodiest battle ever fought in North America and the decisive turning point of the American Civil War, repulsing Robert E. Lee's second invasion of the North.

Battle of Gettysburg — the Civil War's turning point

The Battle of Gettysburg (1–3 July 1863 CE) was the largest battle ever fought in the Western Hemisphere and the turning point of the American Civil War — Lee's Army of Northern Virginia was repelled after three days of fighting, eliminating any hope of Confederate victory in the North.

First Transcontinental Railroad Completed

The golden spike at Promontory Summit, Utah linked the Atlantic and Pacific coasts by rail.

The telephone — the voice that crossed continents

Alexander Graham Bell's telephone (1876 CE) was the first device to transmit the human voice electrically over distance — "Mr Watson, come here, I want to see you" — shrinking the world and beginning the telecommunications revolution that led to radio, television, and ultimately the mobile phone in every pocket.

Battle of Little Bighorn — Custer's Last Stand

The June 1876 battle at which Lakota, Cheyenne, and Arapaho warriors annihilated Lieutenant Colonel Custer's Seventh Cavalry regiment.

Alexander Graham Bell Patents the Telephone

Bell's invention of the telephone revolutionised long-distance communication.

Battle of Wounded Knee — the last massacre

The Massacre at Wounded Knee (29 December 1890) was the last large-scale military action of the American Indian Wars — US 7th Cavalry soldiers killed at least 250 Lakota Sioux men, women, and children after a confrontation over a rifle, effectively ending armed Native American resistance on the Plains.

Jazz — America's original art form

Jazz (c. 1890–1940 CE) emerged from New Orleans as a fusion of African rhythms, blues, gospel, and European harmony — it became America's most original art form and the most influential music of the 20th century, spreading worldwide as an expression of freedom, improvisation, and the African-American experience.

Wright Brothers — twelve seconds that changed the world

The Wright Brothers' first powered, heavier-than-air flight at Kitty Hawk, North Carolina (17 December 1903 CE) lasted twelve seconds and covered 37 metres — within 66 years of that morning, a human being walked on the Moon.

Wright Brothers' First Powered Flight

Orville and Wilbur Wright achieved the first sustained, controlled, powered heavier-than-air flight at Kitty Hawk.

The Harlem Renaissance — Black America finds its voice

The Harlem Renaissance (c. 1920–1935 CE) was the explosion of African-American cultural creativity centred in New York's Harlem neighbourhood — Langston Hughes, Zora Neale Hurston, Duke Ellington, Louis Armstrong, and Paul Robeson created a new American culture that challenged racial stereotypes and defined Black identity.

Hollywood Golden Age of Cinema

The American studio system produced a golden era of filmmaking that shaped global popular culture.

Hubble discovers the expanding universe

Edwin Hubble's 1929 observation that galaxies are receding at speeds proportional to their distance implied the universe is expanding — and must have begun in a single explosive event: the Big Bang.

The Great Depression

The worst economic downturn in US history triggered mass unemployment and transformed the role of government.

Attack on Pearl Harbor — America enters World War II

Japan's surprise attack on the US Pacific Fleet at Pearl Harbor, Hawaii, on 7 December 1941 killed 2,403 Americans, sank or damaged 19 ships, and brought the United States into World War II the following day.

Battle of the Coral Sea — carriers fight unseen

The Battle of the Coral Sea (4–8 May 1942) was the first naval battle in history in which the opposing fleets never saw each other — aircraft carriers launched planes that sank or damaged the enemy fleet, turning surface gunnery into obsolescence and stopping Japan's southward expansion toward Australia.

Battle of Midway — the Pacific War's turning point

The June 1942 naval battle in which the United States Navy destroyed four Japanese fleet carriers, ending Japanese naval dominance in the Pacific.

Battle of Midway — the Pacific War turns

The Battle of Midway (4–7 June 1942) was the decisive naval battle of the Pacific War — the US Navy sank four Japanese fleet carriers in a single day, a loss Japan could never replace, permanently shifting the strategic balance.

Battle of Midway — the Pacific's turning point

The Battle of Midway (4–7 June 1942 CE) was the decisive naval battle of the Pacific War — US codebreakers had cracked Japanese naval codes, enabling an ambush that sank four Japanese fleet carriers, shifting the balance of naval power in the Pacific permanently.

Battle of Guadalcanal — six months of attrition

The Guadalcanal campaign (August 1942 – February 1943) was the first major Allied land offensive of the Pacific War — a grinding six-month struggle for a jungle island in the Solomon Islands that cost both sides heavily but ended in the first Japanese land defeat, marking the strategic turning point in the Pacific.

Battle of the Bulge — Hitler's last gamble in the West

The December 1944–January 1945 German counter-offensive through the Ardennes, the largest battle on the Western Front and America's bloodiest battle of the war.

Battle of Leyte Gulf — the largest naval battle in history

The Battle of Leyte Gulf (23–26 October 1944) was the largest naval battle ever fought — the Japanese navy committed virtually its entire remaining fleet in a desperate attempt to destroy the US landing force in the Philippines and was effectively annihilated, ending Japan as a naval power.

The Manhattan Project — nuclear energy unleashed

The Manhattan Project (1942–1945 CE) was the secret US programme that built the world's first atomic bomb — involving 130,000 people at 30 sites, it produced the most destructive weapon in history, ended World War II, and inaugurated the nuclear age whose shadow still hangs over civilisation.

Battle of Iwo Jima — the costliest Marine battle

The Battle of Iwo Jima (February–March 1945) was the bloodiest battle in US Marine Corps history — 26,000 American casualties — fought to capture a volcanic island whose airfields could support the bombing of mainland Japan.

Manhattan Project and First Atomic Bomb

The secret wartime programme produced the world's first nuclear weapons, ending WWII and launching the atomic age.

Battle of Okinawa — the bloodiest battle of the Pacific

The Battle of Okinawa (1 April – 22 June 1945) was the largest amphibious assault in the Pacific War and one of the bloodiest battles in history — 82 days of fighting cost over 200,000 lives including 12,000 Americans, 110,000 Japanese soldiers, and up to 100,000 Okinawan civilians, and directly shaped the decision to use the atomic bomb.

The Space Race — Earth orbit to the Moon

The Space Race (1957–1969 CE) was the Cold War competition between the USA and USSR for supremacy in space — beginning with Sputnik, the world's first satellite, and culminating in the Apollo 11 moon landing, one of the greatest technological achievements in human history.

Civil Rights Act of 1964

Landmark legislation outlawed discrimination based on race, colour, religion, sex, or national origin.

Cosmic Microwave Background — the Big Bang confirmed

The 1965 discovery of the Cosmic Microwave Background radiation by Arno Penzias and Robert Wilson confirmed the Big Bang theory — a faint microwave hiss coming equally from every direction was the afterglow of the universe's birth 13.8 billion years ago.

The Internet — humanity's nervous system

The internet, born from ARPANET (1969 CE), grew from a Cold War military network into the most disruptive infrastructure ever built — connecting 5 billion people, transforming commerce, communication, politics, culture, and knowledge in ways that are still accelerating.

ARPANET — Birth of the Internet

The first message was sent over ARPANET, the US military network that became the foundation of the modern internet.

Apollo 11 Moon Landing

Neil Armstrong and Buzz Aldrin became the first humans to walk on the Moon, fulfilling Kennedy's promise.

Voyager — humanity's messengers to the stars

The Voyager 1 and 2 spacecraft (launched 1977) conducted the only grand tour of the outer solar system, revealing entirely new worlds — volcanoes on Io, geysers on Triton — and Voyager 1 became the first human-made object to enter interstellar space in 2012.

Hubble Space Telescope — the universe in focus

The Hubble Space Telescope (launched 1990) became the most productive scientific instrument in history — its images of the deep universe, nebulae, and dying stars transformed cosmology and produced some of the most iconic photographs ever taken by humanity.

The Human Genome Project — reading the book of life

The completion of the Human Genome Project (2003 CE) mapped all 3.2 billion base pairs of human DNA — the "book of life" that controls human biology, opening an era of personalised medicine, genetic disease prediction, and profound questions about the relationship between genes and identity.

CRISPR — the gene-editing revolution

The development of CRISPR-Cas9 gene editing (2012 CE) by Jennifer Doudna and Emmanuelle Charpentier was the most transformative biological technology since PCR — a cheap, precise tool for editing any DNA sequence in any organism, enabling treatments for genetic diseases, new crops, and raising profound ethical questions about human germline editing.

Gravitational waves detected — Einstein confirmed

On 14 September 2015 LIGO recorded the first direct detection of gravitational waves — ripples in spacetime predicted by Einstein in 1916 — produced by two black holes 1.3 billion light-years away merging in a fraction of a second, releasing more energy than all the stars in the universe combined.

First image of a black hole — the unseeable made visible

On 10 April 2019 the Event Horizon Telescope collaboration released the first direct image of a black hole — the supermassive black hole at the centre of galaxy M87, 55 million light-years away, surrounded by a glowing ring of superheated gas exactly as Einstein's equations predicted.

James Webb Space Telescope — seeing the universe's first light

The James Webb Space Telescope (launched 2021) has seen further back in time than any instrument before — its infrared vision detects galaxies from less than 300 million years after the Big Bang, revealing the universe's first stars and challenging cosmological models.