In History, Today on January 20

Microsoft announced its acquisition of Activision Blizzard for $68.7 billion, marking one of the largest acquisitions in the tech industry.

Joe Biden was inaugurated as the 46th President of the United States, with Kamala Harris becoming the first female Vice President.

Donald Trump was inaugurated as the 45th President of the United States.

Barack Obama was inaugurated for his second term as President of the United States.

Protests began in Tirana, Albania, part of the broader wave of demonstrations and protests across the Middle East and Balkans in the early 2010s, demanding governmental transparency and an end to corruption.

Barack Obama was inaugurated as the 44th President of the United States, becoming the first African American to hold the office.

George W. Bush was inaugurated for his second term as President of the United States.

George W. Bush was inaugurated as the 43rd President of the United States.

Bill Clinton is inaugurated for his second term as the 42nd President of the United States.

Bill Clinton is inaugurated as the 42nd President of the United States.

George H. W. Bush is inaugurated as the 41st President of the United States.

The United States observed Martin Luther King Jr. Day as a federal holiday for the first time, honoring the civil rights leader's contributions to American society.

Ronald Reagan was inaugurated as the 40th President of the United States. On the same day, 52 American hostages were released from Iran after 444 days in captivity.

Richard Nixon is inaugurated as the 37th President of the United States.

John F. Kennedy was inaugurated as the 35th President of the United States, delivering his famous inaugural address with the line 'Ask not what your country can do for you—ask what you can do for your country.'

Dwight D. Eisenhower is inaugurated as the 34th President of the United States.

Harry S. Truman is inaugurated as President of the United States, beginning his first full term after succeeding Roosevelt following his death in 1945.

Franklin D. Roosevelt was inaugurated for an unprecedented fourth term as President of the United States.

The Wannsee Conference was held in Berlin, where Nazi officials discussed and coordinated the implementation of the 'Final Solution,' the plan to exterminate the Jewish population of Europe.

King George V of the United Kingdom died, and his son, Edward VIII, ascended to the throne, leading to a significant constitutional crisis later that year.

Albania declares itself a republic.

The first basketball game was played at the YMCA gymnasium in Springfield, Massachusetts, USA.

The United States Senate allowed the Navy to lease Pearl Harbor as a naval base, which later became a pivotal location in World War II.

Hong Kong Island was occupied by the British during the First Opium War, leading to its eventual cession to Britain and becoming a significant colonial outpost.

The Kingdom of Great Britain signed a preliminary peace treaty with France, marking the end of hostilities in the American Revolutionary War.

King Charles I of England went on trial for treason and other high crimes against the realm. This trial eventually led to his execution.

The founding of Belém, a key city in the eastern part of the Amazon basin, by Portuguese explorer Francisco Caldeira Castelo Branco. It played a significant role in the colonization of the Amazon region and remains the capital of the state of Pará in Brazil.

The Battle of Rio de Janeiro takes place during the French-Portuguese conflict over the Guanabara Bay area.

Christian III is elected King of Denmark and Norway.

Isabella I of Castile issues the Alhambra Decree, ordering the expulsion of remaining Moores from Spain.

Duke Wladyslaw I of Poland is crowned king, marking the beginning of the reunification of Poland after a period of fragmentation.

The first English Parliament to include not only lords but also representatives of the major towns convened at Westminster, marking a significant step in the development of the parliamentary system.

The Treaty of Benevento is signed between Pope Adrian IV and King William I of Sicily, recognizing William's rule over Sicily.

Theodore I is elected as the Pope of the Catholic Church.

Pope Fabian, the Bishop of Rome, is martyred during the persecution of Christians under Emperor Decius.