View Historical Events by Day: What Happened on April 10 in History?

Fourth Crusade: The siege of Zara (now Zadar, Croatia) begins.

Battle of Bryn Glas: Forces loyal to Owain Glyndŵr of Wales defeat the English at Pumlumon in Powys.

The Battle of Anghiari occurs between the Milanese and the Florentine troops.

The Banquet of Chestnuts takes place at the Vatican, notorious for its scandalous behavior.

Pocahontas, daughter of Chief Powhatan, marries English colonist John Rolfe in Virginia.

Mount Tambora on the northern coast of Sumbawa island, Indonesia explodes in a violent blast which blew the mountain apart resulting in one of the most powerful eruptions in recorded human history. Tambora’s catastrophic activity began on April 5, 1815, with small tremors and pyroclastic flows, followed by Increased steaming and smaller eruptions for up to three years. The effects of the eruptions included major climate changes and a "volcanic winter" in the following year (1816) which is referred to as "the year without summer" The blast, pyroclastic flows, and tsunamis that followed killed at least 10,000 islanders and destroyed the homes of 35,000 more. Before its eruption Mount Tambora was about 4,300 meters (14,000 feet) high. After the eruption ended, a caldera spanning some 6 km (3.7 miles) across remained. The death toll estimate is that at least 71,000 people perished, of which 11,000 –12,000 were killed directly by the eruption. More 

The modern safety pin is invented and patented by Walter Hunt, a mechanic and independent inventor from New York. The design included a clasp to protect the point and a circular twist at the bend for a spring action. Hunt needed money to pay off a debt he owed to a draftsman and he sold the patent for $400 to W.R. Grace & Co. which later made significant profits from the invention.  More

The Thresher (SSN-593), the first of a class of U.S. nuclear-powered attack submarines, sinks approximately 220 miles east of Massachusetts while performing deep dive exercises and carrying a crew of 129 men, in the worst submarine accident in history. The Thresher had been originally launched on July 9, 1960. More

The Belfast Agreement, also known as the Good Friday Agreement, is signed after three decades of conflict known as the Troubles. The agreement set up a power-sharing arrangement and also restored self-government to Northern Ireland. it was approved by voters on May 22, 1998, and came into force on December 2, 1999. The Agreement still survives today.

The Netherlands passed a bill permitting euthanasia, the first such national law in the world. More