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On April 11, 1951, President Harry Truman relieved Gen. Douglas MacArthur of his command due to their disagreement over the handling of the Korean War. On April 19, 1951, after 52 years of military service, Gen. Douglas MacArthur delivers a farewell address to Congress, setting off a controversy among congressional members over whether or not the Joint Chiefs of Staff had approved the MacArthur plan for operations.

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On June 9, 1954, two-thirds of the way into the 36-day televised Army-McCarthy hearings in which Sen. Joseph McCarthy argued that the U.S. Army was harboring communists, the investigation hits a turning point. When Joseph Welch, the Army's special counsel, accuses McCarthy of having "no sense of decency," the tide of public opinion turns and McCarthy's career is eventually ruined.

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In a speech delivered in Berlin on June 26, 1963, President John F. Kennedy expresses his hopes for the reunification of Germany and shows solidarity with the crowd when he says, "I take pride in the words: Ich bin ein Berliner."

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On August 4, 1964, as events in the Tonkin Gulf unfold, Secretary of Defense Robert McNamara apprised President Lyndon B. Johnson of the situation in a series of phone calls. In the third secretly recorded phone call of the day, McNamara reports that two U.S. destroyers deployed in the Gulf east of Vietnam are under attack. While McNamara did not know it at the time, the information he relayed was later determined to be false.

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Why did Richard Nixon's infamous "Checkers" campaign speech about a cocker spaniel irrevocably damage his relationship with Dwight D. Eisenhower?

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When bloody riots broke out between anti-Vietnam War protestors and Chicago police outside the 1968 Democratic National Convention, Sen. Abraham Ribicoff ditched his prepared support speech for George McGovern and instead criticized Mayor Richard Daly's handling of the situation.

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In a turn-of-the-century advertisement, Thomas Edison's newly invented phonograph "talks" to customers, describing its unique characteristics.

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On February 12, 1974, eight days after the abduction of newspaper heiress Patty Hearst, California's KPFA radio played an audiotape sent by the Symbionese Liberation Army, the radical militants responsible for the kidnapping.

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Gov. George Wallace holds a press conference to argue against integration of the state's public schools. Almost 10 years after the U.S. Supreme Court ruling to desegregate schools, Alabama had still not complied. On June 11, 1963, Wallace made national news when he stood in the doorway at the University of Alabama to block African-American students from entering.

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On May 9, 1961, in a speech before a meeting of television executives, Federal Communications Commission Chairman Newton N. Minow characterizes television programming as a "vast wasteland" of senseless violence, mindless comedy and offensive advertising.

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A report from the 1980 Olympic Games in Lake Placid, New York, recaps the astonishing victory of the U.S. men's hockey team over the more experienced Soviets.

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In late July 1976, a pneumonia-like illness began killing people who had attended an American Legion convention at the Bellevue Stratford Hotel in Philadelphia one week earlier. As scientists are on the verge of a breakthrough in determining the cause, CBS News provides an update on the mysterious killer.

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In one of his most celebrated speeches, delivered July 16, 1984, New York Governor Mario Cuomo rises to national attention by highlighting President Reagan's failures.

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On November 8, 1991, Earvin "Magic" Johnson announced in a press conference that he had tested positive for HIV and would be retiring from basketball immediately. A news report covers the story, including a host of reactions from the shocked public.

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On April 23, 1995, President Bill Clinton attends the Time of Healing prayer service held in Oklahoma in response to the act of terrorism that killed 168 people. President Clinton speaks at the event and expresses the nation's grief.

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On September 14, 2001, a day he declares a national day of mourning and remembrance, President George W. Bush stands atop a pile of rubble at Ground Zero and says that the terrorists responsible for the September 11 attacks will hear from America soon.