linguistic:paraphrasing, information:filtering
20th century

On December 19, 1912, English writer William Somerset Maugham arrived in Pago Pago, allegedly accompanied by a missionary and Miss Sadie Thompson. His visit inspired his short story " Rain " which later became plays and three major motion pictures. The building still stands where Maugham stayed and has been renamed the Sadie Thompson Building. Today it is a prominent restaurant and inn.

On November 2, 1921, American Samoa's 13th naval governor, Commander Warren Jay Terhune, died by suicide with a pistol in the bathroom of the government mansion, overlooking the entrance to Pago Pago Harbor. His body was discovered by Government House's cook, SDI First Class Felisiano Debid Ahchica, USN. His ghost is rumored to walk about the grounds at night.

On August 17, 1924, Margaret Mead arrived in American Samoa aboard the SS Sonoma to begin fieldwork for her doctoral dissertation in anthropology at Columbia University, where she was a student of Professor Franz Boas. Her work Coming of Age in Samoa was published in 1928, at the time becoming the most widely read book in the field of anthropology. The book has sparked years of ongoing and intense debate and controversy. Mead returned to American Samoa in 1971 for the dedication of the Jean P. Haydon Museum.

In 1938, the noted aviator Ed Musick and his crew died on the Pan American World Airways S-42 Samoan Clipper over Pago Pago, while on a survey flight to Auckland, New Zealand. Sometime after takeoff, the aircraft experienced trouble, and Musick turned it back toward Pago Pago. While the crew dumped fuel in preparation for an emergency landing, an explosion occurred that tore the aircraft apart.

On November 24, 1939, American Samoa's last execution to date was carried out. A man named Imoa of Fagatogo was convicted of stabbing a person named Sella to death and was hanged in the Customs House. The popular Samoan song "Fa ʻ afofoga Samoa" is based on this, said to be the final words of Imoa.

On January 13, 1942, at 2:26 am, a Japanese submarine surfaced off Tutuila between Southworth Point and Fagasa Bay and fired about 15 shells from its 5.5-inch deck gun at the U.S. Naval Station Tutuila over the next 10 minutes. The first shell struck the rear of Frank Shimasaki's store, ironically owned by one of Tutuila's few Japanese residents. The store was closed, as Mr. Shimasaki had been interned as an enemy alien. The next shell caused slight damage to the naval dispensary, the third landed on the lawn behind the naval quarters known as "Centipede Row," and the fourth struck the stone seawall outside the customs house. The other rounds fell harmlessly into the harbor. As one writer described it, "The fire was not returned, notwithstanding the eagerness of the Samoan Marines to test their skill against the enemy... No American or Samoan Marines were wounded." Commander Edwin B. Robinson was bicycling behind Centipede Row and was wounded in the knee by a piece of shrapnel, and "a member of the colorful native Fita Fita Guard" received minor injuries; they were the only casualties. This was the only time the Japanese attacked Tutuila during World War II, although "Japanese submarines had patrolled the waters around Samoa before the war, and continued to be active there throughout the war."

On August 24, 1943, First Lady Eleanor Roosevelt visited American Samoa and inspected the Fita Fita Guard and Band and the First Samoan Battalion of U.S. Marine Corps Reserve at the U.S. Naval Station American Samoa. The fact that First Lady reviewed the troops led to further assurance that Tutuila Island was considered safe. Her presence underscored that World War II had passed by American Samoa. While the Fita Fita band played, Eleanor Roosevelt inspected the guard.

On October 18, 1966, President Lyndon Baines Johnson and First Lady Lady Bird Johnson visited American Samoa. Mrs. Johnson dedicated the "Manulele Tausala" ("Lady Bird") Elementary School in Nu ʻ uuli, which was named after her. Johnson is the only US president to have visited American Samoa, while Mrs. Johnson was the second First Lady, preceded by Eleanor Roosevelt in 1943. The territory's only hospital was renamed the LBJ Tropical Medical Center in honor of President Johnson.

In the late 1960s and early 1970s, American Samoa played a pivotal role in five of the Apollo Program missions. The astronauts landed several hundred miles from Pago and were transported to the islands en route back to the mainland. President Richard Nixon gave three Moon rocks to the American Samoan government, and these are on display in the Jean P. Haydon Museum, along with a flag carried to the Moon on one of the missions.

In November 1970, Pope Paul VI visited American Samoa in a brief but lavish greeting.

On January 30, 1974, Pan Am Flight 806 from Auckland, New Zealand crashed at Pago Pago International Airport at 10:41 pm, with 91 passengers aboard. 86 people were killed, including Captain Leroy A. Petersen and the entire flight crew. Four of the five surviving passengers were seriously injured, with the other only slightly injured. The airliner was destroyed by the impact and succeeding fire. The crash was attributed to poor visibility, pilot error, or wind shear since a violent storm was raging at the time. In January 2014, filmmaker Paul Crompton visited the territory to interview local residents for a documentary film about the 1974 crash.

A U.S. Navy P-3 Orion patrol plane from Patrol Squadron 50 (VP-50) had its vertical stabilizer shorn off by the Solo Ridge-Mount Alava aerial tramway cable across Pago Pago harbor on April 17, 1980, during the Flag Day celebrations, when carrying six skydivers from the U.S. Army's Hawaii-based Tropic Lightning Parachute Club. The plane crashed, demolishing a wing of the Rainmaker Hotel and killing all six crew members and one civilian. The six skydivers had already left the aircraft during a demonstration jump. A memorial monument is erected on Mt. Mauga O Ali ʻ i to honor their memory.

On November 1, 1988, President Ronald Reagan signed a bill which created American Samoa National Park.