Today in 1502, 523 years ago: Christopher Columbus lands on the island of Martinique on his fourth voyage.

Today in 1859, 166 years ago: Ambiguity in the Oregon Treaty leads to the "Northwestern Boundary Dispute" between American and British/Canadian settlers.

Today in 1999, 26 years ago: a strong earthquake hits Mexico at 15:41 local time (mainly the states of Puebla, Veracruz, Federal District, Tlaxcala and Guerrero) with a magnitude of 6.7, leaving severe damage in Puebla, including in the churches of San Andrés Cholula and the temple of the Virgen de los Remedios.

Today in 1948, 77 years ago: The Philippines, in the province of Misamis Oriental, created the municipality of El Salvador.

Today in 1944, 81 years ago: World War II: The United States invades Saipan, capital of Japan's South Seas Mandate.

Today in 2009, 16 years ago: the Chilean government announces an investment of 20 billion pesos to modernize the National Stadium of Chile.

Today in 2025: The 2025 FIFA Club World Cup will begin, in the United States.

Today in 1492, 533 years ago: in Spain, the Catholic Monarchs approved the capitulation to dispose of the assets they had ceded to Boabdil and those they previously owned, in the sum of 80,000 ducats.

#OnThisDay in 1878, "Eadweard Muybridge took a series of photographs to prove that all four feet of a horse leave the ground when it gallops, which became the basis of motion pictures."

https://en.wikipedia.org/wiki/The_Horse_in_Motion

Today in 2013, 12 years ago: A bomb explodes on a bus in the Pakistani city of Quetta, killing at least 25 people and wounding 22 others.

Today in 1752, 273 years ago: American scientist Benjamin Franklin proves that lightning is electricity.

Today in 2014, 11 years ago: the presidential candidate Juan Manuel Santos defeats Óscar Iván Zuluaga in the Colombian presidential elections within the framework of the peace negotiations with the FARC.

Today in 1520, 505 years ago: Pope Leo X threatens to excommunicate Martin Luther in Exsurge Domine.

Today in 1921, 104 years ago: Bessie Coleman earns her pilot's license, becoming the first female pilot of African-American descent.

Today in 1800, 225 years ago: The Provisional Army of the United States is dissolved.

Today in 1948, 77 years ago: the department of Chocó was created in Colombia, with capital in Quibdó.

#OnThisDay in 1878, Eadweard Muybridge took this series of images of a racehorse in motion. A former governor of California reportedly had bet on whether all the hooves were airborne at once, and hired Muybridge to settle the debate: https://publicdomainreview.org/collection/the-attitudes-of-animals-in-motion-illustrated-with-the-zoopraxiscope-1882 #OTD

Today in 1960, 65 years ago: the Cuban musical group Sonora Matancera travels to Mexico City.

Today in 1607, 418 years ago: Virginia Colonists finished building James's Fort, to defend against Spanish and Indian attacks.

Today in 1991, 34 years ago: In the Philippines, Mount Pinatubo erupts in the second largest volcanic eruption of the 20th century, killing over 800 people.