MARCH 2, 1820: Under the Missouri Compromise, Missouri was admitted as a slave state and Maine was admitted as a free state.
-The Missouri Compromise was an agreement taken in 1820 between the representatives of the slave and abolitionist states in the United States Congress in relation to the regulation of slavery in the Western territories, which in the future would become states, to maintain the majority, or equality at least, of the number of states opposed to slavery, existing from the creation of the United States until then.
The commitment arose from the need to maintain the balance that existed between the 11 non-slave states (New Hampshire, Massachusetts, Connecticut, Rhode Island, New York, New Jersey, Pennsylvania, founders, and Vermont, Ohio, Indiana and Illinois, incorporated). ), and the other 11 slave-states (Maryland, Delaware, Virginia, North Carolina, South Carolina, Georgia, founders, and Kentucky, Tennessee, Mississippi, Louisiana and Alabama, incorporated), when discussing in 1819 the law of admission of the new state of Missouri, slave, which would unbalance the composition of the Senate (each state had and has two representatives, regardless of its population), in favor of the slave states. In the House of Representatives there was no such balance because its representatives were elected proportionally to the population, more numerous in the northern states.
The negotiated solution that was reached, the following year, on March 2, 1820, due to the proposal of the Senator of Kentucky, Henry Clay, consisted of admitting the state of Missouri, as well as the state of Maine, ( that depended on the state of Massachusetts), as a non-slave state.
FEBRUARY 2, 1848: The Mexican-American War ended with the United States gaining more than 500,000 square miles of Mexican territory.
-The Mexican cession are the territories that Mexico ceded to the United States to end the Mexican-American war. This cession was formalized through the Treaty of Guadalupe Hidalgo, signed in the town of the same name on February 2, 1848. The cession of those lands was a condition for the end of the war, when the troops of the United States occupied the city. from Mexico. The United States paid $ 15,000,000 in compensation. The land transferred by Mexico is 14.9% of the total area of the territory of the current United States and 119% of the current territory of Mexico.
SEPTEMBER, 1850: Under the Compromise of 1850, California was admitted as a free state, and the territories of Utah and New Mexico were created.
-The Compromise of 1850 is a set of five bills passed by the Congress of the United States in September 1850, which appeased a political confrontation between slave states and free states. This crisis, which lasted five years, had its origin in the disagreement on the status that territories acquired after the Mexican-American War (1846-1848) should receive and reached its maximum degree of tension with the problem of fugitive slaves. in those years.
NOVEMBER 6, 1860: Abraham Lincoln was elected president of the United States
-In the presidential election of November 6, 1860 Lincoln was elected president of the United States.
FEBRUARY 4, 1861: The Southern states formed a confederation known as the Confederate States of America.
-In February 4, 1861, the Confederation declared its independence from the United States of America.