Ingeniero

USA
* War of independence fought between Great Britain and the 13 British colonies on the eastern seaboard of North America. Battles of Lexington and Concord, Mass., between the British Army and colonial minutemen, mark the beginning of the war (April 19, 1775). Battle-weary and destitute Continental army spends brutally cold winter and following spring at Valley Forge, Pa. (Dec. 19,1777–June 19, 1778). British general Charles Cornwallis surrenders to Gen. George Washington at Yorktown, Va.
 (Oct. 19, 1781). Great Britain formally acknowledges American independence in the Treaty of Paris, which officially brings the war to a close (Sept. 3, 1783). In July 4 1776 the Continental Congress adopts the Declaration of Independence in Philadelphia
* In June 14, 1777 Continental Congressapproves the first official flag of the United States. Continental Congress adopts the Articles of Confederation, the first U.S. constitution (Nov. 15, 1777).
* In February, 1789 George Washington is unanimously elected president of the United States in a vote by state electors. U.S. Constitution goes into effect, having been ratified by nine states (March 4, 1789). U.S. Congress meets for thefirst time at Federal Hall in New York City (March 4, 1789).Washington is inaugurated as president at Federal Hall in New York City (April 30, 1789).
* In June 15, 1800The U.S. capital is moved from Philadelphia to Washington, DC. U.S. Congress meets in Washington, DC, for the first time (Nov. 17, 1800). Gabriel Prosser, an enslaved African American blacksmith, organizes a slave revoltintending to march on Richmond, Virginia. The conspiracy is uncovered, and Prosser and a number of the rebels are hanged. Virginia's slave laws are consequently tightened. In March 4,1801Thomas Jefferson is inaugurated as the third president in Washington, DC.
* Texas declares its independence from Mexico (March 1, 1836). Texan defenders of the Alamo are all killed during siege by the MexicanArmy (Feb. 24–March 6, 1836). Texans defeat Mexicans at San Jacinto (April 21, 1836).
* From 1846 to 1848 U.S. declares war on Mexico in effort to gain California and other territory in Southwest (May 13, 1846). War concludes with signing of Treaty of Guadalupe Hidalgo (Feb. 2, 1848). Mexico recognizes Rio Grande as new boundary with Texas and, for $15 million, agrees to cede territory comprisingpresent-day California, Nevada, Utah, most of New Mexico and Arizona, and parts of Colorado and Wyoming.
* In 1861 Mississippi, Florida, Alabama, Georgia, and Louisiana secede (Jan.). Confederate States of America is established (Feb. 8, 1861).Jefferson Davis is elected president of the Confederacy (Feb. 9, 1861).Texas secedes (March 2). Abraham Lincoln is inaugurated as the 16th president (March4,1861).
* From 1861to 1865 Conflict between the North (the Union) and the South (the Confederacy) over the expansion of slavery into western states. Confederates attack Ft. Sumter in Charleston, S.C., marking the start of the war (April 12, 1861). Virginia, Arkansas, North Carolina, and Tennessee secede (April–June).Emancipation Proclamation is issued, freeing slaves in the Confederatestates (Jan. 1, 1863). Battle of Gettysburg is fought (July 1–3, 1863). President Lincoln delivers the Gettysburg Address (Nov. 19, 1863). Gen. William T. Sherman captures Atlanta (Sept. 2, 1864). Lincoln's second inauguration (March 4, 1865). Gen. Ulysses S. Grant captures Richmond, Va., the capital of the Confederacy (April 3). Confederate general Robert E. Lee surrenders to Ulysses S. Grant atAppomattox Courthouse, Va. (April 9, 1865).
* In April 14, 1865 Lincoln is assassinated by John Wilkes Booth in Washington, DC, and is succeeded by his vice president, Andrew Johnson. Thirteenth Amendment to the Constitution is ratified, prohibiting slavery (Dec. 6, 1865).
* In October, 1886 Statue of Liberty is dedicated. American Federation of Labor is organized (Dec., 1886).
* In...