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Featured content represents the best that Wikipedia has to offer. These are the articles, pictures, and other contributions that showcase the polished result of the collaborative efforts that drive Wikipedia. All featured content undergoes a thorough review process to ensure that it meets the highest standards and can serve as an example of our end goals. A small bronze star (The featured content star) in the top right corner of a page indicates that the content is featured. This page gives links to all of Wikipedia's featured content and showcases one randomly selected example of each type of content. You can view another random content selection.

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Featured article: March 13, 2008
Artist's reconstruction of a major impact event
The Cretaceous–Tertiary extinction event was the large-scale mass extinction of animal and plant species in a geologically short period of time, approximately 65.5 million years ago (mya). It is associated with a geological signature, usually a thin band dated to that time and found in various parts of the world, known as the K–T boundary. The event marks the end of the Mesozoic Era, and the beginning of the Cenozoic Era. Non-avian dinosaur fossils are only found below the K–T boundary and became extinct immediately before or during the event. Mosasaurs, plesiosaurs, pterosaurs and many species of plants and invertebrates also became extinct. Mammalian and bird clades passed through the boundary with few extinctions, and radiation from those Maastrichtian clades occurred well past the boundary. Many scientists theorize that the K-T extinctions were caused by one or more catastrophic events such as massive asteroid impacts or increased volcanic activity. Several impact craters and massive volcanic activity in the Deccan traps have been dated to the approximate time of the extinction event. These geological events may have reduced sunlight and hindered photosynthesis, leading to a massive disruption in Earth's ecology. Other researchers believe the extinction was more gradual, resulting from slower changes in sea level or climate. (more...)

Recently featured: Melodifestivalen – John Knox – Slavery in ancient Greece

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Featured picture: April 29, 2008
Steam turbine

The rotor of a modern steam turbine produced by Siemens AG, which converts steam (heat) energy into kinetic (mechanical) energy. The steam path is from the smallest blade, expanding through progressively larger blade elements. Steam turbines are used in power plants to extract mechanical work from pressurised steam and benefit from their high efficiency and high power-to-weight ratio compared to other technologies, leading to their widespread deployment from electricity generation to marine propulsion.

Photo credit: Christian Kuhna, Siemens AG

Featured list: List of state symbols of Maryland
This is a list of symbols of the U.S. State of Maryland. The majority of the items in the list are officially recognized symbols created by an act of the Maryland General Assembly and signed into law by the governor. However, two of the more famous symbols of Maryland, the state motto and the state nicknames, were never made official by the state government. While the state seal derives from the colonial heritage of the state, the majority of official state symbols were designated in the last few decades.

Miscellaneous

Type Symbol Year Image
Flag Arms of the Calvert and Crossland families 1904[A] Maryland flag
Motto Fatti maschii, parole femine
(Manly deeds, womanly words)		 n/a[B] Maryland State Seal
Nicknames The Old Line State
The Free State		 n/a[C]
Seal The Great Seal of Maryland 1969[D] Maryland State Seal

Featured topic: Period 1 elements

3 articles
Good article Period 1 elements
Featured article Hydrogen
Featured article Helium

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Portals Sounds (media help) Topics
Scott Joplin - Maple Leaf Rag
Antonín Dvořák: Ten Biblical songs
Oppaneun punggakjaengi(오빠는 풍각쟁이)
Carmen Miranda - Chegou a hora da fogueira
Carmen Miranda - Alô... Alô?
Balkandji - Diavolska shterka

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