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Declaration of Independence
The United States Declaration of Independence is the statement adopted by the Second Continental Congress meeting at the Pennsylvania State House in Philadelphia -
Louisiana Purchase
The Louisiana Purchase was the acquisition of the Louisiana territory by the United States from France in 1803. -
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War of 1812
In the War of 1812, the United States took on the greatest naval power in the world, Great Britain -
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Mexican/American War
The Mexican-American War marked the first U.S. armed conflict chiefly fought on foreign soil. -
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Spanish/American War
The Spanish–American War was fought between the United States and Spain in 1898. -
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Panama Canal
President Theodore Roosevelt oversaw the realization of a long-term United States goal—a trans-isthmian canal. Throughout the 1800s, American and British leaders and businessmen wanted to ship goods quickly and cheaply between the Atlantic and Pacific coasts. -
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WW1
World War I was a global war originating in Europe that lasted from 28 July 1914 to 11 November 1918. More than 70 million military personnel, including 60 million Europeans, were mobilised in one of the largest wars -
Zimmerman Telegram
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. -
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Russian Revolution
The violent revolution marked the end of the Romanov dynasty and centuries of Russian Imperial rule. -
Kellogg-Brand 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." -
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The Great Depression
The Great Depression lasted from 1929 to 1939, and was the worst economic downturn in the history of the industrialized world. -
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WW2
World War II was a global war that lasted from 1939 to 1945, although related conflicts began earlier. The vast majority of the world's countries eventually formed two opposing military alliances: the Allies and the Axis. -
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Invasion of Poland
Nazi leader Adolf Hitler claimed the massive invasion was a defensive action, but Britain and France were not convinced. On September 3, they declared war on Germany, initiating World War II. To Hitler, the conquest of Poland would bring Lebensraum, or “living space,” for the German people. -
United Nations Formed
A replacement for the League of Nations, the organization was established after World War II in order to prevent another conflict. -
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Cold War
The Cold War was a state of geopolitical tension after World War II between powers in the East and powers in the West. -
Marshall Plam
President Harry Truman signed the Marshall Plan on April 3, 1948, granting $5 billion in aid to 16 European nations. -
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Berlin Blockade
During the occupation of post-WWII Germany, the Soviet Union blocked the Western Allies' railway, road, and canal access to the sectors of Berlin under Western control. -
Rio Pact
agreement signed in 1947 in Rio de Janeiro among many countries of the Americas. -
NATO
NATO is a formal alliance between the territories of North American and Europe. From its inception, its main purpose was to defend each other from the possibility of communist Soviet Union taking control of their nation. -
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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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Vietnam War
The Vietnam War was a conflict that occurred in Vietnam, Laos, and Cambodia from 1 November 1955 to the fall of Saigon on 30 April 1975. -
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Bay of Pigs
The Bay of Pigs was a failed military invasion of Cuba undertaken by the CIA -sponsored military group Brigade 2506 on 17 April 1961 -
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Berlin Wall (rise and fall)
The Berlin Wall was a guarded barrier that divided Berlin from 1961 to 1989. -
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Cuban Missile Crisis
13-day political and military standoff in 1962 over the nuclear-armed Soviet missiles on Cuba, just 90 miles from U.S. shores. -
JFK Assassination
The 35th President of the United States was assassinated. -
SALT 1 & 2
During the late 1960s, the United States learned that the Soviet Union had embarked upon a massive Intercontinental Ballistic Missile (ICBM) buildup designed to reach parity with the United States -
Detente (Nixon)
The name was given to a period of improved relations between the United States and the Soviet Union that began in 1971 and took form when President Nixon visited the secretary-general of the Soviet Communist party, Leonid I. Brezhnev. -
Camp David Accords
Called for a formal peace treaty to be signed between Israel and Egypt. -
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Persian Gulf War
Saddam Hussein’s invasion of Kuwait set off a brief but consequential conflict involving an international coalition of forces led by the United States. Iraqi leader Saddam Hussein ordered the invasion and occupation of neighboring Kuwait in early August 1990. -
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Liberation of Kuwait Campaign
The Liberation of Kuwait was a U.S.-led military operation to retake Kuwait from Iraq after the massive air campaign, between 24–28 February 1991. -
NAFTA
Description. The North American Free Trade Agreement (NAFTA) is an agreement signed by Canada, Mexico, and the United States and entered into force on 1 January 1994 in order to establish a trilateral trade bloc in North America. -
9/11
Four coordinated attacks by Islamic terrorist group al-Qaeda on the United States of America on Tuesday, September 11, 2001 -
War on Terror
The War on Terror is the campaign launched by the United States of America in response to the September 11 attacks against organizations designated with terrorism. -
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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. -
Obama elected president
First African American President was inaugurated.
