3rd January » Benito Mussolini announces he is taking dictatorial powers over Italy.
5th January » Nellie Tayloe Ross of Wyoming becomes the first female governor in the United States.
21st January » Albania declares itself a republic.
30th January » The Government of Turkey throws Patriarch Constantine VI of Constantinople named Patriarch Constantine VI out of Istanbul.
2nd February » 1925 serum run to Nome known as Serum run to Nome: Dog sleds reach Nome, Alaska with diphtheria serum, inspiring the Iditarod Trail Sled Dog Race named Iditarod race.
15th February » 1925 serum run to Nome: The serum arrives in Nome, Alaska, with Balto being the lead dog of the last team.
21st February » 'The New Yorker' publishes its first issue.
28th February » The 1925 Charlevoix–Kamouraska earthquake known as Charlevoix-Kamouraska earthquake strikes northeastern North America.
18th March » The Tri-State Tornado hits the Midwestern states of Missouri, Illinois, and Indiana, killing 695 people.
21st March » The Butler Act prohibits the teaching of human evolution in Tennessee.
21st March » Syngman Rhee is removed from office after being impeached as the President of the Provisional Government of the Republic of Korea.
16th April » During the Communist St Nedelya Church assault in Sofia, Kingdom of Bulgaria named Bulgaria, 150 are killed and 500 are wounded.
21st April » The Manifesto of the Fascist Intellectuals is published in 'Il Mondo', establishing the political and ideological foundations of Italian Fascism.Jeffrey T. Schnapp (1996). http://www.jstor.org/stable/261164 Fascinating Fascism. 'Journal of Contempora
26th April » Paul von Hindenburg defeats Wilhelm Marx in the second round of the German presidential election, 1925 known as German presidential election to become the first directly elected head of state of the Weimar Republic.
30th April » Automaker Dodge Brothers, Inc is sold to Dillon, Read & Co. for US$146 million plus $50 million for charity.
1st May » The All-China Federation of Trade Unions is officially founded. Today it is the largest trade union in the world, with 134 million members.
1st May » The first Ritual of the Calling of an Engineer is held at the University of Toronto, Canada.
5th May » Scopes Trial: serving of an arrest warrant on John T. Scopes for teaching evolution in violation of the Butler Act.
5th May » The government of South Africa declares Afrikaans an official language.
30th May » May Thirtieth Movement: Shanghai Municipal Police Force shoot and kill 13 protesting workers.
10th June » Inaugural service for the United Church of Canada, a union of Presbyterian, Methodist, and Congregational church or Congregationalist churches, held in the Mutual Street Arena known as Toronto Arena.
16th June » The most famous Young Pioneer camp of the Soviet Union, Artek (camp) called Artek, is established.
10th July » Meher Baba begins his silence of 44 years. His followers observe Silence Day on this date in commemoration.
10th July » Scopes Trial: In Dayton, Tennessee, the so-called "Monkey Trial" begins with John T. Scopes, a young high school science teacher accused of teaching evolution in violation of the Butler Act.
18th July » Adolf Hitler publishes his personal manifesto 'Mein Kampf'.
21st July » Scopes Trial: In Dayton, Tennessee, high school biology teacher John T. Scopes is found guilty of teaching evolution in class and fined $100.
21st July » Sir Malcolm Campbell, father of Donald Campbell, becomes the first man to break the convert 150 mph 0 abbr=on land barrier at Pendine Sands in Wales. He drove a Sunbeam (car company) Sunbeam at a two-way average speed of convert 150.33 mph 0 abbr=on.
25th July » Telegraph Agency of the Soviet Union (TASS) is established.
5th August » Plaid Cymru is formed with the aim of disseminating knowledge of the Welsh language that is at the time in danger of dying out.
9th August » A Kakori train robbery called train robbery takes place in Kakori, near Lucknow, India
2nd October » John Logie Baird performs the first test of a working television system.
14th October » An Anti-French uprising in French-occupied Damascus, Syria. (All French inhabitants flee the city.)
5th November » Secret agent Sidney Reilly, the first "super-spy" of the 20th century, is executed by the State Political Directorate or OGPU, the secret police of the Soviet Union.
28th November » The Grand Ole Opry begins broadcasting in Nashville, Tennessee, as the 'WSM Barn Dance'.
3rd December » World War I aftermath: The final Locarno Treaties or Locarno Treaty is signed in London, establishing post-war territorial settlements.
11th December » Catholic Church named Roman Catholic Pope or papal encyclical 'Quas Primas' introduces the Feast of Christ the King.
12th December » The Majlis of Iran votes to crown Reza Shah Pahlavi named Reza Khan as the new Shah of Iran, starting the Pahlavi dynasty.
26th December » Turkey adopts the Gregorian calendar.