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The Declaration of Independence
The Declaration announced that the thirteen American colonies would now regard themselves as thirteen independent sovereign states, no longer under British rule. With the Declaration these states formed a new nation – the United States of America. -
Louisiana Purchase
The Louisiana Purchase was the acquisition of the Louisiana territory by the United States from France. -
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Mexican-American war
The Mexican–American War, was an armed conflict between the United States of America and the United Mexican States. It followed in the wake of the 1845 American annexation of the independent Republic of Texas, which Mexico still considered its northeastern province and a part of its territory. -
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Spanish American War
The Spanish-American war was fought between the United States and Spain over Cuban independence. Revolts had been occurring for some years in Cuba against Spanish rule. The U.S. backed these revolts and due to the united states naval superiority they won, allowing it temporary control of Cuba. -
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WW1
World War One was a global war originating in Europe that started from the assassination of Archduke Ferdinand. During the war, two major alliances fought against each other-the Axis and the Allied powers.The war resulted in major political changes, including revolutions in many of the nations involved. -
Panama Canal
France began work on the canal in 1881 but stopped due to engineering problems and a high worker mortality rate. The United States took over the project in 1904. The Panama Canal shortcut greatly reduced the time for ships to travel between the Atlantic and Pacific Oceans, enabling them to avoid the lengthy, hazardous Cape Horn route around the southernmost tip of South America via the Drake Passage or Strait of Magellan. -
Zimmerman Telegram
The Zimmermann Telegram was a secret diplomatic communication issued from the Germany that proposed a military alliance between Germany and Mexico in the prior event of the United States entering World War I. Mexico would recover Texas, Arizona, and New Mexico. The proposal was intercepted and decoded by British intelligence. Revelation of the contents enraged American public opinion and helped generate support for the United States declaration of war on Germany in April. -
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, which may arise among them". -
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The Great Depression
The Great Depression was a severe worldwide economic depression that took place mostly during the 1930s, originating in the United States. It was the longest, deepest, and most widespread depression of the 20th century. -
United Nations
The United Nations is an intergovernmental organization tasked to promote international cooperation and to create and maintain international order. The organization was established after World War II to prevent another such conflict.Its objectives include maintaining international peace and security, promoting human rights, fostering social and economic development, protecting the environment, and providing humanitarian aid in cases of famine, natural disaster, and armed conflict. -
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The Cold War
The Cold War was a state of political tension after World War II between the united states and the soviert union. -
The Rio Pact
the Rio Pact was an agreement signed in Rio de Janeiro by many countries in the Americas that states that an attack against one is to be considered an attack against them all. -
Marchal Plan
The Marshall Plan was an American initiative to aid Western Europe, in which the United States gave over $13 billion in economic assistance to help rebuild Western European economies after the end of World War II. The plan was in operation for four years after it began. The goals of the United States were to rebuild war-torn regions, remove trade barriers, modernise industry, make Europe prosperous once more, and prevent the spread of Communism. -
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The Berlin Blocade
The Soviet Union blocked the Western Allies' railway, road, and canal access to the sectors of Berlin under Western control. In response, the Western Allies organized the Berlin airlift to carry supplies to the people of West Berlin. After the success of the airlift, the Soviets dropped the blockade. -
NATO
The North Atlantic Treaty Organization is an intergovernmental military alliance between several North American and European countries based on the North Atlantic Treaty.NATO constitutes a system of collective defence whereby its member states agree to mutual defence in response to an attack by any external party. -
The Cuban Missile Crisis
The Cuban Missile Crisis was a 13 day confrontation between the United States and the Soviet Union concerning American ballistic missile deployment in Italy and Turkey with consequent Soviet ballistic missile deployment in Cuba. -
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The Persian Gulf War
The Gulf War was a war waged by coalition forces from 35 nations led by the United States against Iraq in response to Iraq's invasion and annexation of Kuwait. -
NAFTA
The North American Free Trade Agreement is an agreement signed by Canada, Mexico, and the United States, creating a free trade between these countries in North America. The agreement came into force on January 1, 1994. -
9/11
Terrorists hijacked planes and crashed them into the world trade center. -
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War on Terror
The War on Terror is an international military campaign that was launched by the U.S. government after the September 11 attacks in the U.S. in 2001.Its goal is to end terrorism and fight terrorist groups.
