In a speech at a Council on Foreign Relations dinner in his honor, Secretary of State John Foster Dulles announces that the United States will protect its allies through the “deterrent of massive retaliatory power.” The policy announcement was further evidence of the Eisenhower administration’s decision to rely heavily on the nation’s nuclear arsenal as the primary means of defense against communist aggression.

It was the ultimate All-American romance: the tall, handsome hero of the country’s national pastime captures the heart of the beautiful, glamorous Hollywood star. But the brief, volatile marriage of Marilyn Monroe and Joe DiMaggio–the couple wed on January 14, 1954–barely got past the honeymoon before cracks began to show in its brilliant veneer.

On February 23, 1954, a group of children from Arsenal Elementary School in Pittsburgh, Pennsylvania, receive the first injections of the new polio vaccine developed by Dr. Jonas Salk. Thanks to the vaccine, by the 21st century polio cases were reduced by 99 percent worldwide.

President Eisenhower writes a letter to his friend, Paul Helms, in which he privately criticizes Senator Joseph McCarthy’s approach to rooting out communists in the federal government. Two days earlier, former presidential candidate Adlai Stevenson had declared that the president’s silence on McCarthy’s actions was tantamount to approval. Eisenhower, who viewed political mud-slinging as beneath the office of the president, declined to comment publicly on Stevenson’s remark or McCarthy’s tactics.

President Dwight D. Eisenhower coins one of the most famous Cold War phrases when he suggests the fall of French Indochina to the communists could create a “domino” effect in Southeast Asia. The so-called “domino theory” dominated U.S. thinking about Vietnam for the next decade.

On April 12, 1954, Bill Haley and His Comets record “(We’re Gonna) Rock Around The Clock.” If rock and roll was a social and cultural revolution, then “(We’re Gonna) Rock Around The Clock” was its Declaration of Independence. And if Bill Haley was not exactly the revolution’s Thomas Jefferson, it may be fair to call him its John Hancock.

Senator Joseph McCarthy begins hearings investigating the United States Army, which he charges with being “soft” on communism. These televised hearings gave the American public their first view of McCarthy in action, and his recklessness, indignant bluster and bullying tactics quickly resulted in his fall from prominence.

On April 23, 1954, Hank Aaron knocks out the first home run of his Major League Baseball career. Twenty years later, Aaron becomes baseball’s new home run king when he broke Babe Ruth’s long-standing record of 714 career homers.

In an effort to resolve several problems in Asia, including the war between the French and Vietnamese nationalists in Indochina, representatives from the world’s powers meet in Geneva. The conference marked a turning point in the United States’ involvement in Vietnam.

On April 26, 1954, the Salk polio vaccine field trials, involving 1.8 million children, begin at the Franklin Sherman Elementary School in McLean, Virginia. Children in the United States, Canada and Finland participated in the trials, which used for the first time the now-standard double-blind method, whereby neither the patient nor attending doctor knew if the inoculation was the vaccine or a placebo.

The Supreme Court issues a momentous ruling that clarified the way that the American legal system handled charges of discrimination. In Hernandez v. Texas, the Supreme Court unanimously ruled that the Fourteenth Amendment applied to all racial and ethnic groups facing discrimination, effectively broadening civil rights laws to include Hispanics and all other non-whites.

In Oxford, England, 25-year-old medical student Roger Bannister cracks track and field’s most notorious barrier: the four-minute mile. Bannister, who was running for the Amateur Athletic Association against his alma mater, Oxford University, won the mile race with a time of 3 minutes and 59.4 seconds.

In northwest Vietnam, Ho Chi Minh’s Viet Minh forces decisively defeat the French at Dien Bien Phu, a French stronghold besieged by the Vietnamese communists for 57 days. The Viet Minh victory at Dien Bien Phu signaled the end of French colonial influence in Indochina and cleared the way for the division of Vietnam along the 17th parallel at the conference of Geneva.

May 17, 1954: In a major civil rights victory, the U.S. Supreme Court hands down an unanimous decision in Brown v. Board of Education of Topeka, ruling that racial segregation in public educational facilities is unconstitutional. The historic decision, which brought an end to federal tolerance of racial segregation, specifically dealt with Linda Brown, a young African American girl who had been denied admission to her local elementary school in Topeka, Kansas, because of the color of her skin.

Senator Joseph McCarthy charges that communists have infiltrated the Central Intelligence Agency (CIA) and the atomic weapons industry. Although McCarthy’s accusations created a momentary controversy, they were quickly dismissed as mere sensationalism from a man whose career was slipping away.

In a dramatic confrontation, Joseph Welch, special counsel for the U.S. Army, lashes out at Senator Joseph McCarthy during hearings on whether communism has infiltrated the U.S. armed forces. Welch’s verbal assault—including the enduring question "Have you no sense of decency?"—marked the end of McCarthy’s power during the anticommunist hysteria of the Red Scare in America.

On July 5, 1954, record producer Sam Phillips records an unrehearsed performance of “That’s All Right” by an unknown young truck driver named Elvis Presley It's a moment some regard as the true beginning of the rock-and-roll revolution.

Col. Carlos Castillo Armas is elected president of the junta that overthrew the administration of Guatemalan President Jacobo Arbenz Guzman in late June 1954. The election of Castillo Armas was the culmination of U.S. efforts to remove Arbenz and save Guatemala from what American officials believed to be an attempt by international communism to gain a foothold in the Western Hemisphere.

On August 16, 1954, a new magazine dedicated to covering sports appears on American newsstands. Announcing itself with a striking cover photo of Milwaukee Braves third baseman Eddie Mathews, his swinging bat a blur against the dramatic backdrop of a crowded Milwaukee County Stadium, Sports Illustrated is considered a joke by some at its publisher and will not make money for most of its first decade. Eventually, however, it will become the undisputed leader in American sports media, the sporting magazine of record and one of the most recognizable media brands in the world.

President Eisenhower approves a National Security Council paper titled “Review of U.S. Policy in the Far East.” This paper supported Secretary of State Dulles’ view that, in light of U.S. fears of a regional attack by communist China, the United States should support Vietnamese prime minister Ngo Dinh Diem, while encouraging him to broaden his government and establish more democratic institutions. Ultimately, however, Diem would refuse to make any meaningful concessions or institute any significant new reforms and U.S. support was withdrawn. Diem was subsequently assassinated during a coup by opposition generals on November 2, 1963.

Congress passes the Communist Control Act in response to the growing anticommunist hysteria in the United States. Though full of ominous language, many found the purpose of the act unclear.

Having been directed by President Dwight D. Eisenhower to put together an alliance to contain any communist aggression in the free territories of Vietnam, Laos and Cambodia, or Southeast Asia in general, Secretary of State John Foster Dulles forges an agreement establishing a military alliance that becomes the Southeast Asia Treaty Organization (SEATO).

The famous picture of Marilyn Monroe, laughing as her skirt is blown up by the blast from a subway vent, is shot on September 15, 1954 during the filming of The Seven Year Itch. The scene infuriated her husband, Joe DiMaggio, who felt it was exhibitionist, and the couple divorced shortly afterward.

The USS Nautilus, the world’s first nuclear submarine, is commissioned by the U.S. Navy.

On October 10, 1954, the Viet Minh formally take over Hanoi and control of North Vietnam.

President Eisenhower pledges support to South Vietnamese President Ngo Dinh Diem's government and military forces in a letter on October 25, 1954.

On November 12, 1954, Ellis Island, the gateway to America, shuts it doors after processing more than 12 million immigrants since opening in 1892. Today, tens of millions of Americans can trace their roots through Ellis Island, located in New York Harbor off the New Jersey coast and named for merchant Samuel Ellis, who owned the land in the 1770s.

After 44 months in prison, former government official Alger Hiss is released and proclaims once again that he is innocent of the charges that led to his incarceration.

The first modern instance of a meteorite striking a human being occurs at Sylacauga, Alabama, when a meteorite crashes through the roof of a house and into a living room, bounces off a radio, and strikes a woman on the hip. The victim, Mrs. Elizabeth Hodges, was sleeping on a couch at the time of impact. The space rock was a sulfide meteorite weighing 8.5 pounds and measuring seven inches in length. Mrs. Hodges was not permanently injured but suffered a nasty bruise along her hip and leg.

The U.S. Senate votes 65 to 22 to condemn Senator Joseph R. McCarthy for conduct unbecoming of a senator. The condemnation, which was equivalent to a censure, related to McCarthy’s controversial investigation of suspected communists in the U.S. government, military and civilian society.

On December 21, 1954, Dr. Sam Sheppard is convicted for beating his wife, Marilyn, to death inside their suburban home in Cleveland, Ohio five months earlier. Sheppard claimed to have fallen asleep in the family’s living room and awakened to find a man with bushy hair fleeing the scene. The authorities, who uncovered the fact that Dr. Sheppard had been having an affair, did not believe his story.