In History, Today on April 19

India launched its largest rocket, the GSLV Mk III, which successfully placed 36 telecommunications satellites into orbit as part of a contract with UK-based company OneWeb. This launch demonstrated India's growing capability and participation in the global space industry.

In France, the Constitutional Council confirmed that Emmanuel Macron and Marine Le Pen would face off in the second round of the presidential election after results showed they received the highest votes in the first round held on April 10, 2022. This set up a rematch of the 2017 presidential election runoff.

NASA's Ingenuity helicopter performed its first successful flight on Mars, marking the first time a powered, controlled flight had occurred on another planet. The tiny helicopter ascended, hovered, and safely landed on Martian soil after a 39.1-second flight, sending data back to Earth. This achievement demonstrated technology that could be used in future exploration missions.

Miguel Díaz-Canel was sworn in as the President of Cuba, succeeding Raúl Castro and marking the first time in nearly six decades that a Castro did not hold the presidency.

The manhunt for the Boston Marathon bombing suspects ended with the capture of Dzhokhar Tsarnaev in Watertown, Massachusetts.

Fidel Castro resigned from the Central Committee of the Communist Party of Cuba, officially stepping down from his leadership role in the party.

Cardinal Joseph Ratzinger was elected as the 265th pope of the Roman Catholic Church, taking the name Pope Benedict XVI.

The Oklahoma City bombing occurs, killing 168 people and injuring hundreds more in the deadliest act of domestic terrorism in U.S. history at the time.

The Waco siege ends when the Branch Davidian compound in Waco, Texas, is destroyed by fire after a 51-day standoff with federal agents.

Advance Australia Fair is proclaimed as the national anthem of Australia, replacing God Save the Queen.

Sierra Leone becomes a republic, with Siaka Stevens as its first president.

South Korea's April Revolution culminates as President Syngman Rhee resigns following widespread student-led protests against election fraud.

Actress Grace Kelly marries Prince Rainier III of Monaco in a lavish ceremony, making her Princess of Monaco.

The Warsaw Ghetto Uprising begins as Jewish resistance fighters in the Warsaw Ghetto rise against the Nazi regime.

Mae West's play 'Sex' opened, and she was later arrested and convicted on obscenity charges, which brought her national attention and significantly influenced her career.

The Great Toronto Fire of 1904 destroyed a significant portion of Toronto's downtown, leaving thousands homeless and causing millions of dollars in damages.

The first Boston Marathon is held, with John J. McDermott of New York winning the race.

The Baltimore Riot of 1861 occurs, the first bloodshed of the American Civil War.

The Treaty of Cahuenga was ratified, which effectively ended the Californian part of the Mexican–American War.

The Treaty of London was signed, recognizing Belgium as a neutral and independent state.

The Greek War of Independence against the Ottoman Empire received a significant boost when Lord Byron, a famous British poet and leader in the independence movement, died in Missolonghi, Greece.

George Washington proclaims the end of hostilities with Britain, effectively marking the end of the American Revolutionary War.

John Adams secures the Dutch Republic's recognition of the United States as an independent government.

The Battles of Lexington and Concord mark the beginning of the American Revolutionary War.

Captain James Cook sights the eastern coast of what is now Australia.

Sir Francis Drake entered Cadiz harbor, Spain, preventing the Spanish Armada's preparations for an invasion of England by destroying numerous Spanish ships in an event known as the 'Singeing of the King of Spain's Beard.'

The Second Diet of Speyer ends, resulting in a protest by Lutheran princes and the origin of the term 'Protestant.'

In the period leading up to the Battle of Bannockburn in 1314, which marked a critical point in the First War of Scottish Independence, English and Scottish forces engaged in several tactical maneuvers. While April 19 does not specifically mark a major battle or treaty, it is within the broader context of military preparations and skirmishes occurring in the lead-up to this pivotal conflict.

Ælfheah (also known as Alphege), the Archbishop of Canterbury, was martyred by Vikings. He was taken prisoner and held for ransom, but he refused to allow a ransom to be paid for his release. Consequently, the Vikings killed him in Greenwich.

The Battle of Callinicum took place between the Byzantine Empire, led by General Belisarius, and the Sassanian Empire. Despite being a tactical defeat for the Byzantines, it was strategically inconclusive, as the Sasanians failed to capitalize on their victory.