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American Revolution
The American Revolution was a colonial revolt that took place between 1765 and 1783. The American Patriots in the Thirteen Colonies won independence from Great Britain, becoming the United States of America. -
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Declaration of Independence
A declaration of independence or declaration of statehood is an assertion by a defined territory that it is independent and constitutes a state. -
Louisiana Purchase
The Louisiana Purchase was the acquisition of the Louisiana territory by the United States from France in 1803. The U.S. paid fifty million francs and a cancellation of debts worth eighteen million francs for a total of sixty-eight million francs. -
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War of 1812
The War of 1812 was a conflict fought between the United States, the United Kingdom, and their respective allies. -
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Mexican-American War
The Mexican–American War, also known as the Mexican War and in Mexico the American intervention in Mexico, was an armed conflict between the United States of America and the United Mexican States from 1846 to 1848. -
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Civil War
The American Civil War was fought in the United States from 1861 to 1865. As a result of the long-standing controversy over slavery, war broke out in April 1861, when Confederate forces attacked Fort Sumter in South Carolina, shortly after U.S. President Abraham Lincoln was inaugurated. The nationalists of the Union proclaimed loyalty to the U.S. Constitution. They faced secessionists of the Confederate States, who advocated for states' rights to expand slavery. -
Assassination of Abraham Lincoln
Abraham Lincoln, the 16th President of the United States, was assassinated by well-known stage actor John Wilkes Booth on April 14, 1865, while attending the play Our American Cousin at Ford's Theatre in Washington, D.C. -
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Spanish American War
The Spanish–American War was fought between the United States and Spain in 1898. Hostilities began in the aftermath of the internal explosion of the USS Maine in Havana Harbor in Cuba leading to United States intervention in the Cuban War of Independence. American acquisition of Spain's Pacific possessions led to its involvement in the Philippine Revolution and ultimately in the Philippine–American War. -
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Building of Panama Canal
The Panama Canal is an artificial 77 km waterway in Panama that connects the Atlantic Ocean with the Pacific Ocean. The canal cuts across the Isthmus of Panama and is a key conduit for international maritime trade -
Panama Canal
The Panama Canal is an artificial 77 km waterway in Panama that connects the Atlantic Ocean with the Pacific Ocean. The canal cuts across the Isthmus of Panama and is a key conduit for international maritime trade. -
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World War 1
World War I, also known as the First World War, the Great War, or the War to End All Wars, was a global war originating in Europe that lasted from 28 July 1914 to 11 November 1918. -
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The Great Migration
The Great Migration was the movement of 6 million African-Americans out of the rural Southern United States to the urban Northeast, Midwest, and West that occurred between 1916 and 1970. -
Zimmerman Telogram
The Zimmermann Telegram was a secret diplomatic communication issued from the German Foreign Office in January 1917 that proposed a military alliance between Germany and Mexico in the prior event of the United States entering World War I against Germany. -
KKK Marches Washington
When the KKK paraded down Pennsylvania Avenue in Washington, D.C., the headline in the New York Times declared “Sight Astonishes Capital: Robed, but Unmasked Hosts in White Move Along Avenue.” The marchers, the article noted, received “a warm reception.” The parade took place in broad daylight, in the nation’s capital, and most of the participants were from the north. -
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Kellogg-Briand Pact
The Kellogg–Briand Pact is a 1928 international agreement in which signatory states promised not to use war to resolve "disputes or conflicts of whatever nature or of whatever origin they may be, which may arise among them". Was effective after signed in 1929. -
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Great Depression
The Great Depression was a severe worldwide economic depression that took place mostly during the 1930s, originating in the United States. -
Manhattan Project
The Manhattan Project was a research and development undertaking during World War II that produced the first nuclear weapons. It was led by the United States with the support of the United Kingdom and Canada. -
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World War 2
World War II, also known as the Second World War, was a global war that lasted from 1939 to 1945, although related conflicts began earlier. -
Pearl Harbor
The attack on Pearl Harbor was a surprise military strike by the Imperial Japanese Navy Air Service against the United States naval base at Pearl Harbor, Hawaii Territory, on the morning of December 7, 1941. -
Okinawa
The Battle of Okinawa, codenamed Operation Iceberg, was a major battle of the Pacific War fought on the island of Okinawa by United States Marine and Army forces against the Imperial Japanese Army. -
United Nations
The United Nations is an intergovernmental organization tasked to promote international cooperation and to create and maintain international order. -
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Cold War
The Cold War was a state of geopolitical tension after World War II between powers in the Eastern Bloc and powers in the Western Bloc. -
Rio Pact
The Inter-American Treaty of Reciprocal Assistance (commonly known as the Rio Treaty, the Rio Pact, or by the Spanish-language acronym TIAR from Tratado Interamericano de Asistencia Recíproca) was an agreement signed in 1947 in Rio de Janeiro among many countries of the Americas. -
Marshall Plan
The Marshall Plan was an American initiative to aid Western Europe, in which the United States gave over $13,000,000,000 in economic assistance to help rebuild Western European economies after the end of World War II. -
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Berlin Blockade
The Berlin Blockade was one of the first major international crises of the Cold War. During the multinational occupation of post–World War II Germany, the Soviet Union blocked the Western Allies' railway, road, and canal access to the sectors of Berlin under Western control. The Soviets offered to drop the blockade if the Western Allies withdrew the newly introduced Deutsche mark from West Berlin. -
NATO
The North Atlantic Treaty Organization, also called the North Atlantic Alliance, is an intergovernmental military alliance between several North American and European countries based on the North Atlantic Treaty that was signed on 4 April 1949. -
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Korean War
The Korean War was a war between North Korea and South Korea. The war began on 25 June 1950 when North Korea invaded South Korea following a series of clashes along the border. -
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Berlin Wall
The Berlin Wall was a guarded concrete barrier that physically and ideologically divided Berlin from 1961 to 1989. -
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Bay of Pigs Invasion
The Bay of Pigs Invasion was a failed military invasion of Cuba undertaken by the Central Intelligence Agency-sponsored paramilitary group Brigade 2506 on 17 April 1961. -
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Cuban Missile Crisis
The Cuban Missile Crisis, also known as the October Crisis, the Caribbean Crisis, or the Missile Scare, was a 13-day confrontation between the United States and the Soviet Union. -
Assassination of JFK
John F. Kennedy, the 35th President of the United States, was assassinated on Friday, November 22, 1963, at 12:30 p.m. in Dallas, Texas while riding in a presidential motorcade in Dealey Plaza. -
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Detente (Nixon)
Détente, Period of the easing of Cold War tensions between the U.S. and the Soviet Union from 1967 to 1979. The era was a time of increased trade and cooperation with the Soviet Union and the signing of the SALT treaties. Relations cooled again with the Soviet invasion of Afghanistan. -
Apollo 11 landing.
Apollo 11 was the spaceflight that landed the first two humans on the Moon. Mission commander Neil Armstrong and pilot Buzz Aldrin, both American, landed the lunar module Eagle on July 20, 1969, at 20:18 UTC. -
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Salt 1 and 2
The first agreements, known as SALT I and SALT II, were signed by the United States and the Union of Soviet Socialist Republics in 1972 and 1979, respectively, and were intended to restrain the arms race in strategic (long-range or intercontinental) ballistic missiles armed with nuclear weapons. -
Camp David Accords
The Camp David Accords were signed by Egyptian President Anwar El Sadat and Israeli Prime Minister Menachem Begin on 17 September 1978, following twelve days of secret negotiations at Camp David. -
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Gulf War
The Gulf War, codenamed Operation Desert Shield for operations leading to the buildup of troops and defense of Saudi Arabia and Operation Desert Storm in its combat phase. -
NAFTA
The North American Free Trade Agreement is an agreement signed by Canada, Mexico, and the United States, creating a trilateral trade bloc in North America. The agreement came into force on January 1, 1994. -
9/11 Twin Tower Attacks
The September 11 attacks were a series of four coordinated terrorist attacks by the Islamic terrorist group al-Qaeda on the United States on the morning of Tuesday, September 11, 2001. -
War on Terror
The War on Terror, also known as the Global War on Terrorism, is an international military campaign that was launched by the U.S. government after the September 11 attacks in the U.S. in 2001 -
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Iraq War
The Iraq War was a protracted armed conflict that began in 2003 with the invasion of Iraq by a United States-led coalition that overthrew the government of Saddam Hussein. -
Death of Osama Bin Laden
Osama bin Laden, the founder and first leader of the Islamist group Al-Qaeda, was killed in Pakistan on May 2, 2011 shortly after 1:00 am PKT by United States Navy SEALs of the U.S. Naval Special Warfare Development Group.