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northwest ordinance
the Government of the Territory of the United States, North-West of the River Ohio, and also known as the The Ordinance of 1787, was an act of the Congress of the Confederation of the United States (the Confederation Congress), passed July 13, 1787. -
james polk becomes president
James Knox Polk (November 2, 1795 – June 15, 1849) was the 11th President of the United States (1845–49). Polk was born in Mecklenburg County, North Carolina. He later lived in and represented Tennessee.
James K. Polk - Wikipedia -
louisiana purchase
In exchange, the United States acquired the vast domain of Louisiana Territory, some 828,000 square miles of land. The treaty was dated April 30 and signed on May 2. In October, the U.S. Senate ratified the purchase, and in December 1803 France transferred authority over the region to the United States. -
lewis and clark (start date) May 14, 1804
The Lewis and Clark Expedition, also known as the Corps of Discovery Expedition, was the first American expedition to cross what is now the western portion of the United States. -
war of 1812 (start date
The War of 1812 was a military conflict that lasted from June 1812 to February 1815, fought between the United States of America and the United Kingdom, its North American colonies, and its Native American allies. -
adam-onis treaty
Adams-Onís Treaty was Agreement between the USA and Spain. Negotiated by secretary of state John Quincy Adams and Spanish minister Luis de Onís, Spain gave up its land e of the Mississippi River and claims to the Oregon Territory; the US assumed debts of US$5 million and gave up claims to Texas. -
santa fe trail opens
The Santa Fe Trail was a 19th-century transportation route through central North America that connected Independence, Missouri with Santa Fe, New Mexico. Pioneered in 1821 by William Becknell, it served as a vital commercial highway until the introduction of the railroad to Santa Fe in 1880. -
mexican-american war
The Mexican–American War, also known as the Mexican War, the U.S.–Mexican War or the Invasion of Mexico, was an armed conflict between the United States of America and the United Mexican States from 1846 to 1848. -
mormons settle in utah
On July 24, 1847, an exhausted Brigham Young and his fellow members of the Church of Jesus Christ of Latter-Day Saints arrived in Utah's Great Salt Lake Valley and called it home. The Mormons, as they were commonly known, had moved west to escape religious discrimination. -
california gold rush
The California Gold Rush began on January 24, 1848, when gold was found by James W. Marshall at Sutter's Mill in Coloma, California. -
mexican cession
In February 1848, the two countries signed the Treaty of Guadalupe-Hidalgo. The treaty recognized Texas as a U.S. state, and ceded a large chunk of land — about half the area that belonged to the Mexican republic — to the United States for the cost of $15 million. -
texas annexation
The Texas annexation was the 1845 incorporation 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. -
oregon country ( i couldnt find the date)
Oregon Country, 1846. Oregon Country was a portion of land between the Pacific Ocean and the Rocky Mountains in the northwest portion of the present-day United States. In 1818, the United States and Britain agreed to a "joint occupation" of Oregon, allowing citizens of both countries to settle there.
