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  US troops move into undisputed land between Nueces and Rio Grande. This would create tension between Mexico and the US.
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  The US begins war with Mexico. Resulting in the US winning and gaining much new land.
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  The US-Mexican War began. This event helped expand us powers westward.
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  USA settles dispute with Britain over Oregon
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  The wilmot proviso was passed
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  The Free Soil Party was formed
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  Treaty of Guadalupe-Hildago ends US-Mexican war
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  Compromise of 1850
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  The fugitive slave act was passed
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  Uncle Toms Cabin was published
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  The Gadsden purchase was bought and created
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  The Republican Party was found
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  The Republican party was founded
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  Kansas-Nebraska act; Bleeding Kansas
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  Dred Scott Judgement
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  The treaty of tianjin with china was formed. This treaty ended the first phase of the opium waj
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  Lincoln loses to Douglas for the senate in Illinois
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  Raid on Harpers Ferry
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  John Brown was hung and killed
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  South Carolina seceded
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  The Confederacy was established
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  The Peace Conference was being held in Virginia
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  The completion of all the other states seceding
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  Lincoln inaugurated as President
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  Four more states have joined the Confederacy
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  A constitution of the Confederate States was ratified
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  Battle of Fort Sumter begun
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  Four slave states decide to stay in USA
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  USA abolishes slavery in Washington DC
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  The Homestead Act was established
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  The battle of Antietam has begun
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  The emancipation proclamation went into effect
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  The Battle of Vicksburg has begun
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  The Battle of Gettysburg has begun: USA defeats CSA army
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  The US congress passed the Wade-Davis Bill
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  Atlanta fell to the US forces led by Sherman
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  Lincoln defeats McClellan to be re-elected as US president
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  Freedmans Bureau was created
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  The CSA capital Richmond, falls to the US forces
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  Lee surrenders to Grant at the Appomattox courthouse
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  Lincoln was assassinated
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  John Wilks Booth dies 12 days after assassination
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  The 13th Amendment was passed
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  The KKK was established in Tennessee
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  The Reconstruction Act was passed over Johnsons veto
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  The fourteenth amendment was passed
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  Ulysses S. Grant becomes president
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  Hiram Revels elect to US senate as first black senator
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  There are now 5 black members in the House of Representatives
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  Former slave Oscar J Dunn, the first African American elected lieutenant Governor of the US, finished his term.
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  Pinckney Pinchback began serving as the Governor of Louisiana
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  US Senate votes no to seat Pinchback
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  The Great Sioux War begun. This war was between Lakota Sioux and Northern Cheyenne.
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  Rutherford B. Hayes inaugurated as President of the United States
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  The Dawes Act was passed. This act provided the allotment of lands to indians.
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  The Spanish American war ha begun. This war lasted for only four between these two countries. This war resulted in acquisition of territories in the Western Pacific.
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  The Boxer Rebellion happened, Boxer Uprising or Yihequan Movement was a violent anti-foreign and anti-Christian uprising that took place in China
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  The Philippine Organic Act was established. This act was made to establish territory of the US or an agency to manage certain federal lands.
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  The company Ford was founded. This company went on to create the first automobiles for citizens to travel around in. To this day, we still use Fords.
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  President Monroe issues the Monroe Corollary. This would intervene in the american affairs with the public.
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  Woodrow Wilson becomes the 28th President of The United States
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  The beginning of world war. This war sparked up when the archduke of Hungary, Franz Ferdinand was assassinated. This war would go on for 3 years.
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  Russia mobilizes its vast army to intervene against Austria-Hungary in favor of its ally Serbia.
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  Germany invades Belgium which officially begins world war 1. This war went on for 3 years which resulting in Germany losing.
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  Germany The Germans fire shells filled with chlorine gas at Allied lines. This is the first time that large amounts of gas are used in battle
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  On this date, the Lusitania has sunk. The Lusitania was a British Liner that was sunk by a German U-Boat. The sinking killed 1,198 lives.
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  The British use the first tanks ever being used in battle. They were mainly use to break through barbed wire.
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  The Zimmerman note was intercepted. This note was made to be for Mexico that promised that if they occupy the US, they would get the land that they lost.
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  The United States finally enters WWI. The United States was only in the war for one year.
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  Congress passes the Selective Service Act authorizing the draft. This would only one of the two times that the US would need to use the draft.
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  Russia decided to surrender and back out of the war.
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  the fourteen points was appointed. The fourteen points was proposed by President Wilson, this idea would compromise and bring peace to all countries.
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  Armistice Day is signed ending fighting on the Western Front
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  The Treaty of Versailles was formed. This treaty has brought WW1 to an end. This treaty was signed exactly five years after the assassination of Ferdinand.
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  The 19th amendment was adopted. This would eliminate the womans right suffrage.
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  The First day of the Naval Conference has begun.