In History, Today on October 20

Protests erupted in Chile over a metro fare increase, leading to widespread demonstrations against inequality and prompting the government to declare a state of emergency.

A caravan of migrants from Central America began its journey northward, drawing international attention as it moved through Mexico towards the United States border, highlighting issues of immigration and asylum.

The United Nations announced that the Islamic State had been driven out of Raqqa, Syria, marking a significant defeat for the militant group.

Justin Trudeau was elected as the Prime Minister of Canada, leading the Liberal Party to a majority government in the federal election, ending nearly a decade of Conservative rule under Stephen Harper.

Joko Widodo was inaugurated as the President of Indonesia, becoming the first Indonesian president not to come from the country's political elite or military background.

Muammar Gaddafi, the deposed leader of Libya, was captured and killed by rebel forces in his hometown of Sirte, marking the end of his 42-year rule and a significant moment in the Libyan Civil War.

A bomb exploded near the house of former Pakistani Prime Minister Benazir Bhutto, who had been assassinated in December 2007. The attack targeted the police office and resulted in multiple casualties.

The Boston Red Sox defeated the New York Yankees in Game 7 of the American League Championship Series, becoming the first team in Major League Baseball history to win a best-of-seven series after losing the first three games.

The Oakland firestorm of 1991, one of the most destructive urban wildfires in U.S. history, reached its peak after starting on October 19. Ultimately, it resulted in 25 fatalities, over 3,000 homes destroyed, and damages exceeding $1.5 billion.

Emilio Marcos Desderi, along with companions, conducted the first human expedition to the North Pole during the polar night.

The ferry MV George Prince was struck by a tanker on the Mississippi River near New Orleans, Louisiana, resulting in the deaths of 78 people in one of the deadliest ferry disasters in U.S. history.

The Saturday Night Massacre occurred when U.S. President Richard Nixon ordered the firing of Watergate special prosecutor Archibald Cox, leading to the resignations of Attorney General Elliot Richardson and Deputy Attorney General William Ruckelshaus.

Jacqueline Kennedy married Greek shipping magnate Aristotle Onassis, a significant event in the life of the former First Lady of the United States.

The House Un-American Activities Committee begins its investigation into Communist influence in Hollywood, leading to the Hollywood blacklist.

General Douglas MacArthur returned to the Philippines, fulfilling his famous promise, "I shall return," during World War II.

The government of the United States of America approves a loan for assisting the Allies during World War II, marking a significant step in supporting the Allied Powers.

The Long March, a major event in Chinese history, ends as the Communist Army reaches Yan'an, having successfully evaded the Chinese Nationalist forces.

Stanley Baldwin, leader of the Conservative Party, becomes Prime Minister of the United Kingdom for the second time, succeeding Ramsay MacDonald.

The United States formalized diplomatic relations with the Ottoman Empire by appointing Oscar S. Straus as the first Jewish U.S. Ambassador to the Ottoman Empire.

The Metropolitan Opera House in New York City opened with a performance of Gounod's 'Faust'.

President Abraham Lincoln formally established Thanksgiving as a national holiday in the United States, proclaimed to be celebrated on the last Thursday of November.

The debut of 'A Selection of Irish Melodies' by composer John Francis Barnett took place in Dublin, an important cultural event in Irish music history.

The Texas Revolution: The Battle of Concepción, the first major armed conflict of the war, was fought between Mexican troops and Texan insurgents.

The inaugural meeting of the British Association for the Advancement of Science was held in York to promote science and its applications.

The Battle of Navarino took place during the Greek War of Independence, where a combined British, French, and Russian fleet defeated the Ottoman and Egyptian armada.

The Sunday Times, a prominent British newspaper, was first published in London.

The Convention of 1818 was signed between the United States and the United Kingdom, establishing the 49th parallel as the border between the U.S. and British North America.

The United States Senate ratified the Louisiana Purchase Treaty, effectively doubling the size of the United States.

The First Continental Congress created the Continental Association in Philadelphia, setting up a boycott of British goods.

Maria Theresa became the ruler of the Habsburg dominions following the death of her father, Charles VI, leading to the War of Austrian Succession.

The coronation of George I of Great Britain took place at Westminster Abbey.

The Treaty of Hōryūji is signed, marking the beginning of closer diplomatic relations between the kingdom of Ryukyu (now Okinawa) and the Japanese shogunate.

King Charles VI of France promulgated an ordinance that established rules for the sale of foodstuffs in Paris markets, a measure aimed at controlling prices and curbing the ongoing economic difficulties in France during his reign.

Pope Clement VI issued a papal bull that confirmed the Jews were not to blame for the Black Death outbreaks in Europe. This declaration was an attempt to quell the rising persecution and violence against Jewish communities who were being scapegoated for the pandemic.

The First Crusade: Crusaders led by Godfrey of Bouillon began the Siege of Antioch, a pivotal event in the First Crusade aimed at capturing the city from the Seljuk Turks.

The Battle of Salamis, a significant naval battle during the Greco-Persian Wars, took place. The Greek fleet, under the command of Themistocles, achieved a decisive victory against the Persian fleet led by King Xerxes I.