A general election was held in Bolivia. The Partido Republicano won all 70 seats in the Chamber of Deputies and Jose Cabino Villeneuva was elected president, but the National Congress later annulled the results.[4]
A U.S. Navy seaplane set a new record by staying airborne for 28-and-a-half hours.[1]
The Wilno school massacre occurred in Wilno, Poland when a pair of eighth-grade students attacked the board of examiners with bullets and grenades, killing several people as well as themselves.
Paul von Hindenburg was sworn in as president of Germany. His inaugural address emphasised the need to place unity and mutual progress ahead of political partisanship.[7]
U.S. president Calvin Coolidge ruled out prohibitionist Wayne Wheeler's plan to use the American navy to enforce the Volstead Act, believing the navy's purpose should only be for national defense and not police duty.[10]
Editorials in the Japanese press decried American plans to strengthen the naval base at Pearl Harbor, as such plans either suggested fear of Japanese aggression towards America or American aggression towards Japan.[11]
Al-Insaniyyah, the first Arabic communist newspaper, is founded.
In an expedition directed by explorer Roald Amundsen, two specially-equipped seaplanes (the N24 and N25) took off from Kings Bay (now Ny-Ålesund) in Svalbard, Norway in an attempt to be the first to fly to the North Pole.[16]
Legal 4.4 beer went on sale in the Canadian province of Ontario, triggering an influx of visitors from bordering U.S. states.[17]
Died:Hidesaburō Ueno, 53, Japanese agricultural scientist and guardian of Hachiko
Unsure of their position, experiencing engine trouble and with half their fuel used up, the crew of the N25 touched down on the ice 150 miles short of the North Pole. The N24 spotted their predicament and landed as well. The next twenty-four days would be spent trying to chisel a primitive runway to take off again.[16][18]
International plans were drawn up for possibly sending a rescue expedition towards the North Pole, as the Roald Amundsen plane expedition had not been heard from since its departure five days earlier.[19]
Chicago mobster Angelo Genna was assassinated by the North Side Gang, crashing his car after a high-speed chase in which he was shot numerous times. He died in a hospital shortly afterwards.
British Home SecretaryWilliam Joynson-Hicks announced that he had issued instructions that no "aliens known to be engage in subversive activities abroad" would be allowed into the United Kingdom to participate in next week's communist conference in Glasgow.[21]
British aviator Alan Cobham set a new record for the longest nonstop flight in a light airplane, flying his de Havilland Moth from Croydon Aerodrome in London to Zürich, Switzerland. The flight consumed only twenty-five gallons of gasoline and six pints of oil.[22]
Los Angeles police announced they had foiled a plot to kidnap Hollywood film stars Mary Pickford, Pola Negri and Buster Keaton for ransom. Three arrests had been made.[23]
^"Amundsen Lost 6 Days; U.S. May Send Rescuers". Chicago Daily Tribune. May 27, 1925. p. 1.
^Greenberg, Michael I. (2006). Encyclopedia of Terrorist, Natural, and Man-made Disasters. Sudbury, Massachusetts: Jones and Bartlett Publishers. p. 186. ISBN978-0-7637-3782-5.
^Skene, Don (May 29, 1925). "Britain Opens War in Reds; Bars All Moscow Agitators". Chicago Daily Tribune. p. 2.
^Skene, Don (May 30, 1925). "500 Miles and Back in Day in Air for $10". Chicago Daily Tribune. p. 1.
^Shaffer, George (May 31, 1925). "Plot to Kidnap Mary Pickford". Chicago Daily Tribune. p. 1.