-
Battle of Lexington and Concord
The Battles of Lexington and Concord were the first military engagements of the American Revolutionary War. The battles were fought on April 19, 1775 in Middlesex County, Province of Massachusetts Bay, within the towns of Lexington, Concord, Lincoln, Menotomy, and Cambridge. -
Alien Enemies Act
The Alien Friends Act allowed the president to imprison or deport aliens considered "dangerous to the peace and safety of the United States" at any time, while the Alien Enemies Act authorized the president to do the same to any male citizen of a hostile nation above the age of fourteen during times of war. -
Virginia and Kentucky Resolutions
The Kentucky and Virginia Resolutions (or Resolves) were political statements drafted in 1798 and 1799, in which the Kentucky and Virginia legislatures took the position that the federal Alien and Sedition Acts were unconstitutional. ... The principles stated in the resolutions became known as the "Principles of '98". -
Louisiana Purchase
The Louisiana Purchase was the acquisition of the Louisiana territory by the United States from France in 1803. The U.S. paid fifty million francs and a cancellation of debts worth eighteen million francs for a total of sixty-eight million francs -
Monroe Doctrine
The Monroe Doctrine was articulated in President James Monroe's seventh annual message to Congress on December 2, 1823. The European powers, according to Monroe, were obligated to respect the Western Hemisphere as the United States' sphere of interest. -
Texas Annexation
The Texas Annexation was the 1845 annexation of the Republic of Texas into the United States of America, which was admitted to the Union as the 28th state on December 29, 1845. The Republic of Texas declared independence from the Republic of Mexico on March 2, 1836.