Wikipedia:Main Page history/2023 April 27b

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From today's featured article  Scanning electron micrograph of rods of Escherichia coli Bacteria are ubiquitous, mostly free-living microorganisms often consisting of one biological cell. They constitute a domain of prokaryotic microorganisms. Among the first life forms to appear on Earth, bacteria are present in most habitats. They are vital in many stages of the nutrient cycle, where they recycle nutrients. The study of bacteria is known as bacteriology, a branch of microbiology. Humans and most other animals carry millions of bacteria; most bacteria in and on the body are harmless or rendered so by the immune system, and many are beneficial. Several species are pathogenic and cause infectious diseases. Antibiotics are used to treat bacterial infections and are also used in farming, making antibiotic resistance a growing problem. Bacterial cells do not contain a nucleus and rarely harbour membrane-bound organelles. Their scientific classification changed after the discovery in the 1990s that prokaryotes consist of two groups of organisms that evolved from a common ancestor. (Full article...)

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 Did you know ...  Margery Jackson's court mantua  In the news   Kelvin Kiptum
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Ongoing:  Recent deaths&#58;   On this day April 27: Koningsdag in the Netherlands  Raising the Flag on the Three-Country Cairn <templatestyles src="Hlist/styles.css"> <ul><li>Ulysses S. Grant ( b. 1822)</li><li>Sheila Scott  ( b. 1922)</li><li>Olivier Messiaen  ( d. 1992)</li></ul> More anniversaries: <templatestyles src="Hlist/styles.css"/> <templatestyles src="Hlist/styles.css"/>
 * In the London Marathon, Sifan Hassan wins the women's race, while Kelvin Kiptum (pictured) wins the men's event and breaks the course record.
 * The wreckage of the Montevideo Maru, a Japanese vessel sunk by the US during World War II with over 1,000 captive Australian nationals onboard, is discovered in the South China Sea.
 * SpaceX Starship, the most powerful rocket to date, is launched from Texas and destroyed almost four minutes into the flight.
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 * 630 – Shahrbaraz usurped the throne of the Sasanian Empire from Ardashir III, but was himself killed six weeks later.
 * 1650 – Wars of the Three Kingdoms: Covenanter forces defeated the Royalists at the Battle of Carbisdale near the village of Culrain, Scotland.
 * 1945 – World War II: The photograph Raising the Flag on the Three-Country Cairn (pictured) was taken after German troops withdrew to Norway at the end of the Lapland War.
 * 1965 – Indonesia–Malaysia confrontation: British forces repelled a surprise Indonesian attack on a base at Plaman Mapu in Sarawak.
 * 2005 – The Airbus A380, the world's largest passenger airliner, made its maiden flight from Toulouse, France.
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<h2 id="mp-tfp-h2" class="mp-h2">Today's featured picture <h2 id="mp-other" class="mp-h2">Other areas of Wikipedia <h2 id="mp-sister" class="mp-h2">Wikipedia's sister projects <templatestyles src="Wikipedia's sister projects/styles.css" /> Wikipedia is written by volunteer editors and hosted by the Wikimedia Foundation, a non-profit organization that also hosts a range of other volunteer projects:
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<templatestyles src="Plainlist/styles.css"/> <ul id="sister-projects-list"> <li> Commons Free media repository </li> <li> MediaWiki Wiki software development </li> <li> Meta-Wiki Wikimedia project coordination </li> <li> Wikibooks Free textbooks and manuals </li> <li> Wikidata Free knowledge base </li> <li> Wikinews Free-content news </li> <li> Wikiquote Collection of quotations </li> <li> Wikisource Free-content library </li> <li> Wikispecies Directory of species </li> <li> Wikiversity Free learning tools </li> <li> Wikivoyage Free travel guide </li> <li> Wiktionary Dictionary and thesaurus </li> </ul> <h2 id="mp-lang" class="mp-h2">Wikipedia languages <templatestyles src="Wikipedia languages/styles.css"/> This Wikipedia is written in English. Many other Wikipedias are available; some of the largest are listed below. <li> 1,000,000+ articles <templatestyles src="Hlist/styles.css"/> </li> <li> 250,000+ articles <templatestyles src="Hlist/styles.css"/> </li> <li> 50,000+ articles <templatestyles src="Hlist/styles.css"/> </li> </ul>
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