Wikipedia:Main Page history/2024 June 12

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From today's featured article  Interior of Incapillo Incapillo is a Pleistocene-age caldera – a depression formed by the collapse of a volcano – in La Rioja Province, Argentina. It is part of the southernmost volcanic centre in the Andean Central Volcanic Zone (CVZ). Subduction of the Nazca Plate beneath the South American Plate is responsible for most of the volcanism in the CVZ. Volcanism commenced in the Incapillo region 6.5 million years ago, forming the high volcanic edifices of Monte Pissis, Cerro Bonete Chico and Sierra de Veladero. Incapillo is known to have erupted the Incapillo ignimbrite 0.52 ± 0.03 and 0.51 ± 0.04 million years ago; this has a total volume of about 20.4 cubic kilometres (4.9 cu mi). A caldera with dimensions of 5 by 6 kilometres (3.1 mi × 3.7 mi) formed during the eruptions. Later volcanism generated more lava domes within the caldera and a debris flow in the Sierra de Veladero. The lake within the caldera may overlie an area of ongoing hydrothermal activity. (Full article...) Recently featured: 


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Ongoing:  Recent deaths&#58;   On this day June 12: First day of Shavuot (Judaism, 2024); Dia dos Namorados in Brazil; Loving Day in the United States (1967)  Boeing 777 <templatestyles src="Hlist/styles.css"> <ul><li>Æthelflæd ( d. 918)</li><li>Samuel Cooper  ( b. 1798)</li><li>Eugénie Brazier  ( b. 1895)</li><li>Milorad Petrović  ( d. 1981)</li></ul> More anniversaries: <templatestyles src="Hlist/styles.css"/> <templatestyles src="Hlist/styles.css"/>
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 * 1864 – Union general Ulysses S. Grant pulled his troops out of the Battle of Cold Harbor in Hanover County, Virginia, ending one of the bloodiest, most lopsided battles in the American Civil War.
 * 1914 – As part of the Ottoman Empire's policies of ethnic cleansing, Turkish irregulars began a six-day massacre in the predominantly Greek town of Phocaea.
 * 1954 – Dominic Savio, who was 14 years old at his death in 1857, was canonized by Pope Pius XII, making him one of the youngest non-martyred saints in the Catholic Church.
 * 1994 – The Boeing 777 (pictured), the world's largest twinjet, made its maiden flight.
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