Wikipedia:Main Page history/2023 January 21b
From today's featured article
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The Cerro Blanco is a caldera in the Andes, located in Argentina's Catamarca Province. Part of the Andes' Central Volcanic Zone, it is a volcano collapse structure located at an altitude of 4,670 metres (15,320 ft) in a depression. It has been active for the last eight million years and its eruptions have created several ignimbrites. An eruption 73,000 years ago formed the Campo de la Piedra Pómez ignimbrite layer, while another eruption in 2,300 ± 160 BCE became the largest volcanic eruption of the Central Andes, and reached the highest level in the Volcanic Explosivity Index, ejecting an estimated 170 cubic kilometres (41 cu mi) of tephra. This eruption led to the formation of the most recent caldera, as well as thick ignimbrite layers. However, the Cerro Blanco has been dormant since then, although some deformation and geothermal activity have been recorded. The volcano is also known for giant ripple marks that have formed on its ignimbrite fields. (Full article...)
Did you know ...
- ... that Mabel Freer (pictured) was deported from Australia because she could not speak Italian?
- ... that the January 2023 election of the Speaker of the United States House of Representatives was the longest speaker election since December 1859 – February 1860?
- ... that PeopleSound was Europe's most visited music streaming site in 2000, and had offered any artist £100 for each song they uploaded?
- ... that American football linebacker Segun Olubi grew up in New Jersey, Minnesota, Arizona, England, and California, and attended four different colleges in Idaho, California, and Arkansas?
- ... that according to a critic, Odysseus, Verbrecher portrays Odysseus with post-traumatic stress disorder?
- ... that nearby homeowners believed the tower of a TV station in Arkansas was responsible for "a bad effect on the peace and health of the citizens"?
- ... that St Mary's Anglican Church, Busselton, Australia, has been a part of six dioceses, namely Canterbury, Calcutta, Sydney, Adelaide, Perth and Bunbury?
- ... that Scottish scientists attempted to create a carrot-based substitute for carbon fibre?
In the news
- Chris Hipkins (pictured) is chosen to succeed Jacinda Ardern as Prime Minister of New Zealand and Leader of the New Zealand Labour Party.
- A helicopter crashes near Kyiv, killing fourteen people, including Ukrainian interior minister Denys Monastyrsky.
- In the Antiguan general election, the Labour Party retains its majority in the House of Representatives.
- A plane crash in Pokhara, Nepal, kills all 72 people on board.
- In the elections to the parliament of Benin, the Progressive Union for Renewal–Republican Bloc alliance retains a majority, but the opposition Democrats win back parliamentary representation.
On this day
- 763 – The Abbasid Caliphate crushed the Alid revolt when a rebel leader was mortally wounded in battle near Basra in present-day Iraq.
- 1789 – The Power of Sympathy by William Hill Brown, widely considered to be the first American novel, was published.
- 1919 – The First Dáil (members pictured) convened at the Mansion House in Dublin and adopted a declaration of independence calling for the establishment of the Irish Republic.
- 1972 – Tripura, formerly part of the independent Twipra Kingdom, became a state of India.
- 2017 – Millions of people participated in the worldwide Women's March, to advocate for legislation and policies on human rights and other issues.
- Theodor Fliedner (b. 1800)
- Edith Tolkien (b. 1889)
- Vincent Lingiari (d. 1988)
Today's featured picture
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Rega is a private, non-profit air rescue service that provides emergency medical assistance in Switzerland and Liechtenstein. It was established in 1952 by Rudolf Bucher, who believed the Swiss rescue organization needed a specialized air sub-section. This image is a sequence photograph, stitched from 207 separate frames, of Rega's rescue helicopter Da Vinci in operation in Stoos, Switzerland. Photograph credit: Roy Egloff
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