On This Day - What happened 4 February

Severus is famously said to have given the advice to his sons: "Be harmonious, enrich the soldiers, scorn all others" before he died on 4 February 211. On his death, Severus was deified by the Senate and succeeded by his sons, Caracalla and Geta, who were advised by his wife Julia Domna. Severus was buried in the Mausoleum of Hadrian in Rome. His remains are now lost.

The 1797 Riobamba earthquake occurred at 12:30 UTC on 4 February. It devastated the city of Riobamba and many other cities in the Interandean valley, causing between 6,000–40,000 casualties.

Baden sent two democrats, Friedrich Karl Franz Hecker and Gustav von Struve, to the pre parliament. In the minority and frustrated with the lack of progress, Hecker and Struve walked out in protest on April 2, 1848.

A pre-war February Peace Conference of 1861 met in Washington, proposing a solution similar to that of the Crittenden compromise; it was rejected by Congress. The Republicans proposed an alternative compromise to not interfere with slavery where it existed but the South regarded it as insufficient.

Just two years later, on 4 February 1912, Austrian tailor Franz Reichelt died after jumping from the first level of the tower (a height of 57 metres) to demonstrate his parachute design.

Rosa Parks was born Rosa Louise McCauley in Tuskegee, Alabama, on February 4, 1913, to Leona (née Edwards), a teacher, and James McCauley, a carpenter.

On February 4, 1924, he married Lil Hardin Armstrong, King Oliver's pianist, divorced in 1938.

Sinatra had met Barbato in Long Branch, New Jersey in the late 1930s, where he spent most of the summer working as a lifeguard.He agreed to marry her after an incident at "The Rustic Cabin" which led to his arrest.

Montagu selected the code name Mincemeat from a list of centrally held available possibilities. On 4 February 1943 Montagu and Cholmondeley filed their plan for the operation with the Twenty Committee; it was a re-working of Cholmondeley's Trojan Horse plan.

On 4 February, Soviet, British, and US leaders met for the Yalta Conference. They agreed on the occupation of post-war Germany, and on when the Soviet Union would join the war against Japan.

Churchill, Roosevelt, and Stalin had been met at the Yalta Conference, February 1945.

On the day of his arrival Khomeini made clear his rejection of Bakhtiar's government in a speech promising, "I shall kick their teeth in. I appoint the government, I appoint the government in support of this nation". On 5 February at Khomeini's headquarters in the Refah School in southern Tehran, he declared a provisional revolutionary government, appointed opposition leader Mehdi Bazargan (from the religious-nationalist Freedom Movement, affiliated with the National Front) as his own prime minister, and commanded Iranians to obey Bazargan as a religious duty.

Chávez began preparing for a military coup d'état known as Operation Zamora. The plan involved members of the military overwhelming military locations and communication installations and then establishing Rafael Caldera in power once Pérez was captured and assassinated. Chávez delayed the MBR-200 coup, initially planned for December, until the early twilight hours of 4 February 1992. On that date five army units under Chávez's command moved into urban Caracas. Despite years of planning, the coup quickly encountered trouble since Chávez commanded the loyalty of less than 10% of Venezuela's military. After numerous betrayals, defections, errors, and other unforeseen circumstances, Chávez and a small group of rebels found themselves hiding in the Military Museum, unable to communicate with other members of their team. Pérez managed to escape Miraflores Palace.Then Chávez gave himself up to the government. Fourteen soldiers were killed, and fifty soldiers and some eighty civilians injured during the ensuing violence.

Simón Bolívar has left a long lasting imprint on Venezuela's history in particular and South America in general. As a military cadet, Hugo Chávez was "a celebrant of the Bolivarian passion story". Chávez relied upon the ideas of Bolívar and on Bolívar as a popular symbol later in his military career as he put together his MBR-200 movement which would become a vehicle for his 1992 coup-attempt.

On 4 February 1997, Milošević recognized the opposition victories in some local elections, after mass protests lasting 96 days.

On February 4, however, the Senate voted 70–30 that excerpting these videotapes would suffice as testimony, rather than calling live witnesses to appear at trial.

On February 4, 2004, Zuckerberg launched "The Facebook", originally located at thefacebook.com.

Messi made his debut for Barcelona B in the Segunda División B.

On February 4, 2004, Zuckerberg launched "TheFacebook", originally located at thefacebook.com.

The Symbian community objective was to publish the source code for the entire Symbian platform under the OSI- and FSF-approved Eclipse Public License (EPL). The code was published under EPL on 4 February 2010; Symbian Foundation reported this event to be the largest codebase moved to Open Source in history.

On 4 February 2014, Sony announced that it would sell its VAIO PC business due to poor sales and Japanese company Japan Industrial Partners (JIP) will purchase the VAIO brand, with the deal finalized by the end of March 2014. Sony maintains a minority stake in the new, independent company.

On February 4, 2014, Gates stepped down as chairman of Microsoft to become Technology Advisor alongside new CEO Satya Nadella.

On February 4, 2014, Steve Ballmer stepped down as CEO of Microsoft and was succeeded by Satya Nadella, who previously led Microsoft's Cloud and Enterprise division.

On February 4, 2015, the company received US$30 million in Series C funding from investors including Emergence Capital, Horizons Ventures (Li Ka-shing), Qualcomm Ventures, Jerry Yang, and Patrick Soon-Shiong. At that time, Zoom had 40 million users, with 65,000 organizations subscribed and a total of 1 billion meeting minutes since it was established.

On February 4, 2019, it was announced that the activist hedge fund Starboard Value, which had played a large role in turning around the troubled Olive Garden restaurant chain, would be investing $200 million into Papa John's Pizza and that Starboard could possibly invest an additional $50 million by March 29, 2019.

On February 4, 2020, at the conclusion of President Trump's State of the Union, Pelosi tore up her official copy of his speech. Her stated reason for doing so was "because it was a courteous thing to do considering the alternatives. It was a such a dirty speech." She was criticized for this by President Trump and Republicans.

On 4 February 2020, two more cities in Zhejiang province restricted the movement of residents. The city of Taizhou, three Hangzhou districts, and some in Ningbo began to only allow one person per household to go outside every two days to buy necessities, city officials said. More than 12 million people are affected by the new restrictions.

On 4 February 2020, all casinos in Macau were ordered to shut down for 15 days. Therefore, casinos are to reopen on February 19th.

John Roger was the first protestant martyr under Mary I and he was burnt at the stake in London.

The 1st protestant martyr under Mary I was John Roger, who was burnt at the stake in London.

The Holy Roman Emperor Ferdinand II had a peace treaty with the Prince of Hungary.

The Polish–Lithuanian military leader Tadeusz Kociuszko was born in 1746.