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Mexican American War
The war officially ended with the February 2, 1848, signing in Mexico of the Treaty of Guadalupe Hidalgo. The treaty added an additional 525,000 square miles to United States territory, including the land that makes up all or parts of present-day Arizona, California, Colorado, Nevada, New Mexico, Utah and Wyoming. -
Purchase of Alaska
The United States reached an agreement to purchase Alaska from Russia for a price of $7.2 million. The Treaty with Russia was negotiated and signed by Secretary of State William Seward and Russian Minister to the United States Edouard de Stoeckl. -
U.S Troops Lands in Cuba.
June 22, 1898: U.S. troops land in Cuba. On June 22, 1898, the first U.S. troops landed on Cuban land. For months, U.S. troops had been stationed in Tampa, Florida, the place Brigadier General William had chosen as the staging ground for eventual troop deployment to Cuba. -
The Influence of Sea Power Upon History
Captain Alfred Thayer Mahan, a lecturer in naval history and the president of the United States Naval War College, published The Influence of Sea Power upon History, 1660–1783, a revolutionary analysis of the importance of naval power as a factor in the rise of the British Empire. -
Overthrow of the Kingdom of Hawaii
Hawaii's monarchy was overthrown when a group of businessmen and sugar planters forced Queen Liliuokalani to abdicate. The coup led to the dissolving of the Kingdom of Hawaii two years later, its annexation as a U.S. territory and eventual admission as the 50th state in the union. -
Sanford B. Dole becomes President of Hawaii
Sanford Ballard Dole (April 23, 1844 – June 9, 1926) was a lawyer and jurist in the Hawaiian Islands as a kingdom, protectorate, republic and territory. After the overthrow of the monarchy, he served as the President of the Republic of Hawaii until his government secured Hawaii's annexation by the United States. -
Hawaii Annexation
After negotiations, a treaty was agreed to for the annexation of the Republic of Hawaii. Marines supported an overthrow of the Hawai'ian queen in order to obtain more territory for the U.S. -
The Spanish Surrenders at Santiago
The site of the Santiago Surrender Tree (also known as the Tree of Peace or Spanish: Arbol de la Paz), located in Santiago, Cuba, marks where Spanish forces surrendered to U.S. forces on July 17, 1898, at the end of the Spanish–American War. -
Battle of Manila Bay
The American Asiatic Squadron under Commodore George Dewey engaged and destroyed the Spanish Pacific Squadron under Contraalmirante (Rear admiral) Patricio Montojo. The battle took place in Manila Bay in the Philippines, and was the first major engagement of the Spanish–American War. -
U.S & Spain Signs The Protocol of Peace
On August 12, 1898, representatives for the United States and Spain signed a peace protocol in Washington DC, ending the three-month-long Spanish-American War in Cuba, Puerto Rico, Guam, and the Philippines. The war had formally begun on April 25, 1898, when the United States declared war against Spain. -
Sinking of The Maine
A massive explosion of unknown origin sinks the battleship USS Maine in Cuba's Havana harbor, killing 260 of the fewer than 400 American crew members aboard. ... Much of Congress and a majority of the American public expressed little doubt that Spain was responsible and called for a declaration of war. -
Yellow Journalism
During the 1890s, journalism that sensationalized and sometimes even manufactured dramatic events was a powerful force that helped propel the United States into war with Spain. -
U.S Congress Declares War on Spain
On April 25, 1898 the United States declared war on Spain following the sinking of the Battleship Maine in Havana harbor on February 15, 1898. The war ended with the signing of the Treaty of Paris on December 10, 1898. -
Philippines Insurrection Begins (Philippines-American War)
Philippine-American War, a war between the United States and Filipino revolutionaries from 1899 to 1902, an insurrection that may be seen as a continuation of the Philippine Revolution against Spanish rule. -
Boxer Rebellion
This situation, combined with increased missionary activity by Christians, as well as a drought followed by floods and an outbreak of the bubonic plague, led to the Boxer Rebellion. The rebellion is important because: The European great powers (including Britain) finally ceased their ambitions of colonizing China. -
The Treaty of Paris Is Signed By Representatives From TheU.S. and Spain
After extensive debate, the treaty is ratified by the U.S. senate on February 6, 1899. Under the treaty, the U.S. acquires control over Cuba, Puerto Rico, Guam and the Philippines. -
Open Door Policy
During the late 1800s and early 1900s, European countries, as well as America and Japan, sought to exert economic and political control over China. To prevent one country from obtaining the upper hand, President McKinley's Secretary of State, John Hay, established the Open Door Policy. -
Theodore Roosevelt Elected President
he rising young Republican politician Theodore Roosevelt unexpectedly became the 26th president of the United States in September 1901, after the assassination of William McKinley. Young and physically robust, he brought a new energy to the White House, and won a second term on his own merits in 1904. -
Big Stick Diplomacy
International negotiations backed by the threat of force. The phrase comes from a proverb quoted by Theodore Roosevelt, who said that the United States should “Speak softly and carry a big stick.” -
Philippines Insurrection (Philippines-American War)
After two years of fighting, the costly effort in the war was seen as pointless and due to the lowering of resistance, American Troops began to leave the island with few staying behind to continue fighting what were now considered mere bandits. -
Panama Declares Independence From Columbia
Panamanians declared independence from Columbia, and with the aid of the United States, Panama won its independence. When Columbia backed out of an agreement with the US to build a canal across Panama, Panamanian rebels declared independence on November 3, 1903. -
Russo-Japanese War
The Russo-Japanese War held great international significance, as it was the first all-out war of the modern era in which a non-European power defeated one of Europe's great powers. As a result, the Russian Empire and Tsar Nicholas II lost considerable prestige, along with two of their three naval fleets. -
Dollar Diplomacy
A form of American foreign policy to further its aims in Latin America and East Asia through use of its economic power by guaranteeing loans made to foreign countries. -
Mexican Revolution
Ended dictatorship in Mexico and established a constitutional republic, -
Panama Canal
Theodore Roosevelt was interested in building a canal between the Atlantic and Pacific Oceans before the Spanish-American war in 1898. He wanted a shorter route for naval ships needing to pass between the two oceans. -
Assassination Of Archduke Franz Ferdinand
The assassination of the Archduke played a major role in the increase in tension that lead to the first World War. -
Austria-Hungary Declares War On Siberia
This declaration of war after the assassination of the Archduke effectively began World War One -
Germany Invades Belgium
Germany declared war on France. To avoid the French fortifications along the French-German border, the troops had to cross Belgium and attack the French Army by the north. Of course, Belgians refused to let them through, so the Germans decided to enter by force and invaded Belgium -
Britain Declares War On Germany
After the invasion of Belgium, Britain declares war on Germany due to past agreements and alliance with Belgium to aid. -
Zimmermann Telegram
The text of the so-called Zimmermann Telegram, a message from the German foreign secretary, Arthur Zimmermann, to the German ambassador to Mexico proposing a Mexican-German alliance in the case of war between the United States and Germany, is published on the front pages of newspapers across -
United States Joins The War
Germany's resumption of submarine attacks on passenger and merchant ships in 1917 became the primary motivation behind Wilson's decision to lead the United States into World War I. -
Russia Withdrew From The War
Russia signalled her withdrawal from World War One soon after the October Revolution of 1917, and the country turned in on itself with a bloody civil war between the Bolsheviks and the conservative White Guard. -
Treaty Of Versailles
The Treaty of Versailles (French: Traité de Versailles) was the most important of the peace treaties that brought World War I to an end. The Treaty ended the state of war between Germany and the Allied Powers. -
Red Scare
The First Red Scare was a period during the early 20th-century history of the United States marked by a widespread fear of Bolshevism and anarchism, due to real and imagined events; real events included the Russian Revolution and anarchist bombings
