APUSH Flashcards

studied byStudied by 21 people
5.0(2)
Get a hint
Hint

Dr. Strangelove

1 / 390

flashcard set

Earn XP

Description and Tags

391 Terms

1

Dr. Strangelove

  • Popular dark comedy that explored the possibility of an “accident” with the bomb

  • One of several movies that dealt with nuclear tensions in the early 1960s

  • These films reflected popular concerns about the threat of nuclear war

New cards
2

Transcontinental Railroad

  • The federal government encouraged the building of a transcontinental railroad route with legislation and land grants

  • The Union Pacific built west from Nebraska, and the Central Pacific built east from California

  • The lines met at Promentory, Utah, in 1869

New cards
3

Wade-Davis Act

  • Congress passed this bill in 1864 in response to Lincoln’s “10 Percent Plan”

  • Set out much more difficult conditions for Southern reentry into the Union, including requiring that half the white male citizens of a Southern state take a loyalty oath

  • Lincoln killed the bill with a pocket veto

New cards
4

Civil Service Commission

  • Created by the Pendleton Civil Service Act of 1883

  • In charge of testing applicants and assigning them to appropriate government jobs

  • Filling jobs on the basis of merit replaced the spoils system

New cards
5

George Whitefield

  • Anglican minister who proved to be a dynamic and charismatic preacher during the Great Awakening

  • Preached to as many as 20,000 people at a time

  • His 1740 tour of the colonies was the high point of the Great Awakening

New cards
6

National Consumers League

  • Formed in 1890

  • Was concerned with improving the working and living conditions of women in the workplace

New cards
7

Settlement Houses

  • Progressive reformers set up these centers in the poorest sections of American cities

  • Here workers and their children might receive lessons in English or citizenship, while women learned domestic skills

  • The first settlement house was Hull House in Chicago, started by Jane Addams in 1889

New cards
8

Slavery

  • The first African slaves entered Virginia as workers in 1619 when few legal differences existed between black and white workers

  • By the 1670s and 1680s, African slavery was widespread in the Chesapeake colonies

  • The trading of slaves became an integral part of the triangular trade system

New cards
9

Ross Perot

  • Texas multibillionaire who ran for president in 1992 as a third candidate

  • Spent a lot of money on ads, criticizing special interests and promising to bring “common sense” to the White House

  • Won nearly 19 million votes, probably taking more votes from George H.W. Bush than Bill Clinton

New cards
10

Suburbia

  • Area outside of the cities where massive numbers of families flocked, especially in the 1950s and 1960s

  • Suburban parents often worked in the cities, but the suburban lifestyle shared little with urban life

  • Critics decried conformity in suburbia

New cards
11

Birth of a Nation

  • Epic movie released by director D.W Griffith in 1915

  • Portrayed Reconstruction as a time when Southern blacks threatened basic American values, which the Ku Klux Klan protected

  • Was lauded by many, including President Woodrow Wilson

New cards
12

Palmer Raids

  • Part of the Red Scare, these were measure to hunt out political radicals and immigrants who were potential threats to American security

  • Organized by Attorney General A. Mitchell Palmer (and carried out by J. Edgar Hoover), these raids arrested 5,500 people

New cards
13

Red Scare

  • A vigorous repression of radicals, “political subversives”, and “undesirable” immigrant groups took place in the years immediately following World War I

  • Nearly 6,500 “radicals” were arrested and sent to jail, while nearly 500 immigrants were deported

New cards
14

Harlem Renaissance

  • Black literary and artistic movement centered on Harlem that lasted from the 1920s into the early 1930s

  • Both celebrated and lamented black life in America

  • Langston Hughes and Zora Neale Hurston were two famous writers of this movement

New cards
15

National Origins Act

  • This very restrictive immigration legislation, passed in 1924, lowered immigration to 2% of each nationality as found in the 1890 census

  • This lowered immigration dramatically, and, quiet intentionally, almost ended immigration from Southern and Eastern Europe

New cards
16

Dust Bowl

  • Part of the Great Plains region that suffered severe drought and experienced severe dust storms during the 1930s

  • Because of extreme conditions, many who lived in the Dust Bowl left their farms and went to California to work as migrant farmers

New cards
17

Second New Deal

  • Beginning in 1935, the New Deal did more to help the poor and attack the wealthy

  • One reason for this was to turn Americans away from more radical measures

  • Key legislative acts of this era were the Social Security Act, the National Labor Relations Act, and the Wealth Tax Act

New cards
18

Jay’s Treaty

  • A 1794 treaty negotiated by John Jay, designed to ease tensions between the United States and Great Britain

  • The British agreed to abandon the forts they occupied on American territory in the west

  • The British refused to make concessions over the rights of American ships

New cards
19

Scottsboro Boys

  • 9 young black men who were accused of raping two white women in a railway boxcar in Scottsboro, Arizona, in 1931

  • Quick trials, suppressed evidence, and inadequate legal council made them symbols of the discrimination that faced blacks on a daily basis in this era

New cards
20

George Kennan

  • American diplomat and expert in Soviet affairs

  • Became the chief formulator of the policy of containment

  • Argued that because of Soviet hostility and insecurity, the U.S. needed to contain communism until it collapsed on its own

New cards
21

Loyalty Review Boards

  • Established in 1947 in an effort to control possible communist influence in the American government

  • Investigated “security risks” working for the government, and determined if they should lose their jobs because of political affiliations or sexual orientation

New cards
22

HUAC (House Un-American Activities Committee)

  • Beginning in 1947, this committee investigated possible communist infiltration of the entertainment industry and the government

  • Its most famous investigations were of the “Hollywood Ten” and Alger Hiss

New cards
23

Consumer Society

  • Many Americans became infatuated with all of the new products produced by technology and went out and purchased more than any prior generation

  • Consumer tastes of the 1950s were largely dictated by advertising and television

New cards
24

Bessemer Steel

  • First produced in 1856 in a converter (furnace) invented by Henry Bessemer

  • Much more durable and harder than iron

  • Steel was a critical commodity in the Second Industrial Revolution

New cards
25

Webb Alien Land Law

  • California law passed in 1913 that prohibited Japanese who were not American citizens from owning land in California

  • Illustrates the nativist sentiment found in much of American society in the first decades of the 20th century

New cards
26

Historiography

  • The study of history and how it is written

  • Students of this analyze various historical interpretations and the views of historians

  • Is not as concerned with events themselves as with how the events are interpreted

New cards
27

Rio Pact

  • 1947 treaty signed by the United States and most Latin American countries that stated the region would work together on economic and defense matters

  • Created the Organization of American States to facilitate this cooperation

New cards
28

Temperance Movement

  • Movement that developed in America before the Civil War that lamented the effect that alcohol had on American society

  • After the Civil War, members of this movement became concerned about the effects of alcohol on the poor and immigrants

  • Out of this came a drive for prohibition

New cards
29

Aztecs

  • Advanced Native American society located in central Mexico

  • Conquered in 1512 by the Spanish conquistador Hernán Cortéz

  • Their defeat was hastened by smallpox brought to Mexico by the Spanish

New cards
30

Middle Passage

  • Voyage across the Atlantic taken by slaves on their way to the Americas

  • Sickness, disease, and death were rampant

  • On some ships, more than 20% of the slaves who began the voyage were dead by the time the ship landed

New cards
31

Social History

  • Field of history that analyzes the lives and beliefs of common people in any era

  • In American history, this field has grown dramatically since the 1960s

  • Social historians believe that we get a more accurate view of an event by looking at the actions of ordinary people rather than leaders

New cards
32

Ku Klux Klan

  • Organization founded during Reconstruction by Southerners who wanted to maintain white supremacy

  • Used terror tactics, including murder

  • Was revived in the 1920s to oppose immigration and Catholics

  • The KKK still exists today

New cards
33

Secondary Source

  • Historical account written after the fact

  • A historian writing a secondary source would analyze the available primary sources on his/her topic

  • Examples would be a textbook, a new biography of Lincoln, or a history of slavery

New cards
34

Sharecropping

  • Form of agricultural labor that emerged in the South after the Civil War

  • Sharecroppers worked for a landlord, receiving seed and farming implements, and in return for their labor, recieved the profits for a share of the crop

  • Most became indebted to their landlords

New cards
35

Battle of Gettysburg

  • Most important battle of the Civil War

  • July 1863 victory by Union forces prevented General Robert E. Lee from successfully invading the North

  • Gettysburg, along with the defeat at Vicksburg, turned the tide against the South

New cards
36

“Tight Money”

  • Governmental policy utilized to offset the effects of inflation

  • Many times the Federal Reserve Board has increased the interest on money it loans to member banks

  • When these higher interest rates are passed on, a slowing economy cuts inflation

New cards
37

Gold Standard

  • Occurs when an economic system bases all currency on gold, allowing paper currency to be exchanged for gold

  • Business interests in the late 19th century supported this

  • William Jennings Bryan ran against this in 1896, favoring the free coinage of silver

New cards
38

Scalawags

  • Term used by Southerners in the Reconstruction era for fellow Southerners who either supported Republican Reconstruction policies or gained economically as a result of these policies

  • Seen as allies of the carpetbaggers

New cards
39

Port Huron Statement

  • Manifesto of the Students for a Democratic Society, a radical student group formed in 1962

  • Called for a greater role for university students in the nation’s affairs, rejected the traditional role of the university, and rejected the current American foreign policy goals

New cards
40

Hull House

  • The first settlement house in America, established by Jane Addams and Ellen Gates Starr in Chicago in 1889

  • Provided services such as reading groups, social clubs, and employment bureau, and a “day care center”

  • Was copied in other cities

New cards
41

Referendum

  • A Progressive-era reform designed to improve the political system

  • With the referendum, certain issues would be decided directly by the voters, who were called upon to approve or disapprove specific government programs

  • Progressives saw this as democratic reform

New cards
42

Initiative Process

  • A procedure supported b the Populist Party in the 1890s

  • In states with an initiative process, any proposed law can go on the public ballos so long as a petition with an appropriate number of names is submitted beforehand supporting the proposed law

New cards
43

Internment Camps

  • The controversial decision to intern Japanese-Americans living on the West Coast in camps was made after Pearl Harbor

  • President Franklin Roosevelt authorized this with Executive Order #9066

  • Was validated by the Supreme Court in 1944

New cards
44

Hollywood

  • The American movie industry achieved unprecedented influence in the 1930s

  • Going to the movies provided a way for Americans to escape their daily troubles

  • By 1939, nearly 70% of all adults went to the movies at least once a week

  • Plush theaters made this a special event

New cards
45

Bear Flag Republic

  • The name given to the republic created by American settlers when they declared California independent from Mexico in 1846

  • This act was part of a larger American political and military strategy to wrest Texas and California from Mexico

New cards
46

Battle of Fredericksburg

  • Fought on December 13, 1862

  • The Union army commanded by General Ambrose Burnside suffered a major defeat at the hands of General Robert E. Lee’s Confederates

New cards
47

Reconstruction Act

  • Plan of the Radical Republicans to control the South, approved in March 1867

  • The former Confederacy was divided into 5 military districts (Tennessee was exempt)

  • Conventions were to be called to create new state governments, with former Confederate officials ineligible to hold office

New cards
48

Direct Primary

  • Progressive-era reform adopted by some states

  • Allowed candidates for state office to be nominated by the rank-and-file party members in statewide primaries instead of by the party bosses who had traditionally dominated the nominating process

New cards
49

Samuel Adams

  • A leading opponent of British policy in the 1760s and 1770s

  • Helped organize the Sons of Liberty

  • A leader in the agitation surrounding the Boston Massacre

  • Because of the Boston Tea Party, Adams was marked for arrest by the British

New cards
50

Recall

  • Progressive reformers proposed this as a reform of the government system

  • By the process of recall, the citizens of a city or state could remove an unpopular elected official from office in midterm

  • Was adopted by only a small number of communities

New cards
51

Tenure of Office Act

  • 1867 congressional act designed to limit the influence of President Johnson

  • Stated that Congress had to approve the removal of officials made by the president

  • Johnson defied the act by firing Secretary of War Edwin Stanton and was impeached

New cards
52

Revenue Act of 1942

  • Designed to raise money for the war, this bill dramatically increased the number of Americans required to pay income tax

  • Up to this point, roughly 4 million Americans paid income tax

  • As a result of this legislation, nearly 45 million paid income tax

New cards
53

Homestead Act

  • 1862 enactment by Congress that gave 160 acres of publicly owned land to a farmer who lived on the land and farmed it for 2 year

  • Inspired hundreds of thousands of Americans to move westward in the years after the Civil War

New cards
54

Gadsden Purchase

  • A strip of territory running through Arizona and New Mexico that the United States purchased from Mexico in 1853

  • President Pierce authorized this purchase to ensure that the southern route of the transcontinental railroad would be in American territory

New cards
55

Seventeenth Amendment

  • Ratified in 1913, this amendment allowed voters to directly elect U.S. senators

  • Senators had previously been elected by state legislatures

  • Reflected the desire of Progressives to put political power in the hands of the citizenry

New cards
56

My Lai Massacre

  • In 1968, a unit under the command of Lieutenant William Calley killed more than 300 men, women, and children in this small Vietnamese village

  • The anti-war movement took the attack as a symbol of the “immorality” of United States efforts in Vietnam

New cards
57

Justice Reorganization Bill

  • Franklin Roosevelt’s plan to increase the size of the Supreme Court

  • Claimed many of the judges were older and needed help keeping up with the work

  • Really wanted to “pack the court” because it had outlawed New Deal acts

  • So many opposed the plan that it failed

New cards
58

Kerner Commission

  • Established in 1967 to study the reasons for urban riots, the commission spoke at length about the impact of poverty and racism on the lives of urban blacks in America

  • Emphasized that white institutions created and condoned American ghettoes

New cards
59

Black Power

  • Movement of Black Americans in the mid -1960s that emphasized pride in racial heritage and black economic and political self-reliance

  • Term was coined by black civil rights leader Stokely Carmichael

New cards
60

Puritans

  • Religious dissidents who left England for America to establish a “purer” church

  • Settled Plymouth Colony in 1620 and the Massachusetts Bay Colony in 1630

  • Were heavily influenced by John Calvin and his concept of predestination

New cards
61

New Deal

  • Series of policies instituted by Franklin Roosevelt and his advisors from 1933-1941 that attempted to offset the effects of the Great Depression on American society

  • In the end, in was the onset of World War II, and not the New Deal, that pulled the United States out of the depression

New cards
62

Haymarket Square

  • Location in Chicago of a labor rally called by anarchist and other radical labor leaders on May 2, 1886

  • A bomb was hurled towards the police, who opened fire on the demonstrators

  • The many casualties amongst police and workers led to press criticism of unions

New cards
63

Muckrakers

  • Journalists of the Progressive era who attempted to expose the evils of government and big business

  • Many wrote of the corruption of city and state political machines

  • Others wrote about factory conditions and the living and working conditions of workers

New cards
64

Head Start

  • One of President Johnson’s War on Poverty programs

  • Gave substantial funding for a nursery school program to prepare children of poor parents for kindergarten

New cards
65

Sit-Down Strikes

  • Labor tactic where workers refuse to leave their factory until management meets their demands

  • The most famous sit-down strike occurred at the General Motors plant in Flint, Michigan, beginning in November, 1936

  • The workers won the strike after 44 days

New cards
66

Morrill Land Grant Act

  • 1862 federal act designed to fund state “land grant” colleges

  • State governments were given large amounts of land in the western territories

  • This land was sold to individual settlers, land speculators, and others, and the profits of these land sales helped establish colleges

New cards
67

Yellow Journalism

  • Uses accounts and illustrations of lurid and sensational events to sell newspapers

  • Newspapers using this strategy covered the events in Cuba leading up to the Spanish-American War, and shifted American opinion toward desiring war with Spain

New cards
68

Know-Nothing Party

  • A political party that developed in the 1850s, claiming that the other parties and the whole political process were corrupt

  • Know-Nothing's believed that immigrants were depressing wages and that Catholics were destroying American democracy

  • This foreshadowed later nativist groups

New cards
69

Ghost Dances

  • Religion practiced by the Sioux

  • Thought that a Native American messiah would come and banish the whites, return the buffalo, and give all land back to the Native Americans

  • Worried officials ordered Sioux leader Sitting Bull’s arrest and attacked the Sioux at Wounded Knee

New cards
70

Hessians

German troops who fought for Great Britain during the Revolutionary War

Mercenaries sold into British service by German princes who raised money by hiring out their regiments

New cards
71

Loyalists

  • Colonists who remained loyal to Great Britain during the American Revolution

  • Many, though not all, Loyalists came from the upper strata of society

  • Large numbers moved to Canada, the West Indies, or Great Britain during the war

New cards
72

Robert E. Lee

  • American military officer with a brilliant record in the Mexican War who turned down a high command in the Union army to fight with his native state of Virginia

  • A great general who won many victories but could not ultimately prevail against Union forces

New cards
73

Andrew Jackson

  • The first president to come from the West

  • Achieved fame as a general, fighting the Creeks and winning the Battle of New Orleans in the War of 1812

  • Founded the Democratic Party and was hailed as the champion of the common man

New cards
74

Boston Tea Party

  • In response to the Tea Act and additional British taxes on tea, Boston radicals disguised as Native Americans threw nearly 350 chests of tea into Boston harbor on December 16, 1773

  • Parliament closed Boston harbor and passed the Coercive Acts

New cards
75

Dominion of New England

  • A consolidation of the colonies of Rhode Island, Massachusetts, Connecticut, New York, Plymouth, and New Hampshire by King James II in 1686

  • The Dominion ended in April 1689, following the overthrow during the Glorious Revolution

New cards
76

Battle of Vicksburg

  • Vicksburg, a Confederate city along the Mississippi River, was taken after a lengthy siege in July 1863

  • Gave the Union virtual control of the Mississippi River and was a serious psychological blow to the Confederacy

New cards
77

Carpetbaggers

  • Terms used by Southerners to mock Northerners who came to the South to gain either financially or politically during Reconstruction

  • Referred to carpetbags, a form of luggage

New cards
78

Woodrow Wilson

  • As president, Wilson helped pass the last major progressive legislation

  • Led the United States into World War I, and won international fame and a Nobel Peace Prize for his Fourteen Points

  • Lost his health trying to pass the Versailles Treaty at home in the US

New cards
79

Sedition Act

  • 1918 act that stated it was illegal to criticize the government, the Constitution, the U.S. army, or the U.S. Navy

  • Socialist leader Eugene Debs received a 3-year sentence for criticizing militarism, and hundreds of others went to prison

New cards
80

Fourteen Points

  • Woodrow Wilson’s view of a post-World War I world that he hoped the other Allied powers would endorse

  • Wilson’s vision included elimination of secret treaties, arms reduction, national self-determination, and the creation of a League of Nations

New cards
81

Henry Clay

  • A leading American statesman from Kentucky who promoted “The American System”

  • Served as a congressman, senator, presidential candidate, and diplomat

  • Known as “the Great Pacificator” because of his ability to craft compromises in the Senate

New cards
82

Great Migration

  • Large numbers of southern blacks moved to midwestern and eastern industrial cities beginning with World War I and continuing into the 1920s

  • Workers were needed there originally because of the war and later because of immigration restrictions

  • Many blacks gladly left the racist South

New cards
83

Zimmermann Telegram

  • In January 1917, the German foreign minister sent a telegram to Mexico suggesting that the Mexican army should join forces with Germany against the United States and reclaim the American southwest

  • The British deciphered this and turned it over to the U.S., causing anti-German feeling

New cards
84

Unrestricted Submarine Warfare

  • In early 1917, Germany announced that U-boats would attack all ships attempting to land at British or French ports

  • Woodrow Wilson said that this violated the neutral rights of the United States, and America was forced to declare war

New cards
85

Upton Sinclair

  • Socialist intellectual and muckraking journalist

  • His powerful 1906 novel, The Jungle, was a denunciation of the capitalist exploitation of workers in Chicago’s meat-packing industry

  • His descriptions of filthy working conditions led to the Meat Inspection Act

New cards
86

Booker T. Washington

  • A former slave who became a leading black educator

  • Founded famous Normal and Industrial Institute at Tuskegee, Alabama

  • Emphasized education and self-help as the means for black Americans to improve their situation in American society

New cards
87

Socialism

Movement that is critical of the capitalist system, and whose proponents want to replace it with communal ownership of most property

During the Progressive era, the Socialist Party led by union activist Eugene Debs won more votes than any American socialist party before or since

New cards
88

National Association for the Advancement of Colored People (NAACP)

  • Formed in 1909, this organization fought for the rights of blacks in America

  • Originally went to court for the plaintiff in the Brown v. Board of Education case with Thurgood Marshall as the main attorney

New cards
89

Federal Deposit Insurance Corporation (FDIC)

  • Passed during the first hundred days of the Roosevelt administration, this body insured individual bank deposits up to $2,500

  • Helped restore confidence in America’s banks

New cards
90

Dred Scott Case

  • Supreme Court case involving a slave who had lived in a non slave state and was now petitioning for his freedom

  • In 1857 the Court ruled that, as property, slaves could not sue in the courts

  • The Court also ruled that the Missouri Compromise was unconstitutional

New cards
91

Freeport Doctrine

  • Stephen Douglas introduced this in the Lincoln-Douglas debates

  • He believed that despite the Dred Scott decision, a territory could still prevent slavery by electing anti-slavery officials and enacting laws that would make slavery impossible to enforce

New cards
92

Monroe Doctrine

  • President James Monroe’s 1823 statement that an attack by a European state on any nation in the Western Hemisphere would be considered an attack on the United States

  • Monroe’s statement was scoffed at by certain European political leaders, especially those in Great Britain

New cards
93

Fort Sumter

  • A federal fort located in Charleston, South Carolina, that was fired on by Confederate artillery on April 12, 1861

  • These were the first shots of the Civil War

  • A public outcry followed in the Northern states and the mobilization of a federal army began

New cards
94

Missouri Compromise

  • Henry Clay proposed this 1820 compromise as a way of maintaining a balance between free and slave states

  • Maine was admitted to the Union as a free state and Missouri as a slave state, while any part of the Louisiana territory north of 36 degrees, 30 inches would be free territory

New cards
95

John D. Rockefeller

  • Entered the oil business in the 1860s after the discovery of oil in Pennsylvania

  • Created a trust with his Standard Oil, and for a time controlled most of the refining and transportation of oil in the U.S.

  • Retired with a $1 billion fortune and set up a number of philanthropical organizations

New cards
96

Gettysburg Address

  • November 19, 1863, speech made by Abraham Lincoln at the dedication ceremony for a cemetery for Union soldiers killed at the Battle of Gettysburg

  • Lincoln stated that “government of the people, by the people, for the people, shall not perish from the earth”

New cards
97

Progressivism

  • This movement desired political and social reforms and was most influential in America from the 2890s until World War I

  • Advocated popular progressive causes included reforming city government, better conditions for workers, the education of immigrants, and the regulation of big business

New cards
98

Vertical Integration

  • Type of industrial organization practiced in the late 1800s and pioneered by Andrew Carnegie and U.S. Steel

  • Under this system, all the various business activities needed to produce and sell a finished product would be done by the same company

New cards
99

Neutrality Act of 1939

  • Franklin Roosevelt persuaded Congress to amend the Neutrality Act of 1935

  • New legislation stated that Britain and France could buy arms from the United States as long as there was cash “up front” for these weapons

  • Allowed the U.S. to assist the Allies

New cards
100

Timber and Stone Act

  • 1878 bill that allowed private citizens to purchase forest territory in Oregon, Washington, California, and Nevada

  • Although the intent of the bill was to encourage settlement, lumber companies bought large amounts of these land claims from the original purchases

New cards

Explore top notes

note Note
studied byStudied by 10 people
... ago
5.0(1)
note Note
studied byStudied by 450 people
... ago
4.8(6)
note Note
studied byStudied by 35 people
... ago
5.0(2)
note Note
studied byStudied by 14 people
... ago
5.0(1)
note Note
studied byStudied by 5 people
... ago
5.0(2)
note Note
studied byStudied by 19 people
... ago
5.0(1)
note Note
studied byStudied by 32 people
... ago
4.0(1)
note Note
studied byStudied by 192753 people
... ago
4.8(759)

Explore top flashcards

flashcards Flashcard (36)
studied byStudied by 9 people
... ago
5.0(2)
flashcards Flashcard (40)
studied byStudied by 2 people
... ago
5.0(1)
flashcards Flashcard (285)
studied byStudied by 3 people
... ago
5.0(1)
flashcards Flashcard (166)
studied byStudied by 7 people
... ago
4.0(1)
flashcards Flashcard (33)
studied byStudied by 5 people
... ago
5.0(1)
flashcards Flashcard (68)
studied byStudied by 13 people
... ago
5.0(1)
flashcards Flashcard (20)
studied byStudied by 5 people
... ago
5.0(1)
flashcards Flashcard (659)
studied byStudied by 31 people
... ago
5.0(1)
robot