Wikipedia:Main Page alternatives/(simple layout)
Almanac · Categories · Glossaries · Lists · Overviews · Portals · Questions · Site news · Index
Art | Geography | History | Mathematics | People | Philosophy | Science | Society | Technology
We are building an open-content encyclopedia in many languages. We started in January 2001 and are now working on 6,923,054 articles in the English version. Learn how to edit pages, experiment in the sandbox, and visit our Community Portal to find out how you can contribute to Wikipedia. This page is also available without pictures. More main page alternatives
Today's featured article
Algebra is the branch of mathematics that studies certain abstract systems, known as algebraic structures, and the manipulation of statements within these systems. Elementary algebra generalizes arithmetic by using variables in addition to numbers. It covers methods of transforming equations to solve them by isolating variables. Linear algebra examines systems of several linear equations and techniques to determine for which values all equations in a system are true at the same time. Abstract algebra investigates algebraic structures, which consist of a set of objects together with operations defined on that set. It distinguishes algebraic structures, such as groups, rings, and fields, based on their number of operations and the laws they follow. Algebraic methods were first studied in ancient times to solve specific problems. As algebra evolved, it became increasingly abstract and generalized, leading to many applications in other branches of mathematics and the empirical sciences. (Full article...)
Did you know...
- ... that a staff member at the Carlyle Hotel (pictured) once lent his own bow tie to Laurence Olivier?
- ... that Yangginu plotted to defeat Khan Wan to avenge his murdered father?
- ... that to prepare for her role in The Last Dance, actress Michelle Wai learned to perform a Taoist funeral ritual traditionally performed only by men?
- ... that the city council of Hamtramck, led by Mayor Amer Ghalib, banned the pride flag from publicly owned flagpoles?
- ... that the death rate from adrenal crises can reach as high as 6 percent?
- ... that Shane Connolly has provided flowers for two royal weddings and the coronation of Charles III?
- ... that the Child Law Project reports on Ireland's child-care system?
- ... that U.S. Army chaplain Patrick Ryan celebrated a Mass of thanksgiving for 10,000 people after the liberation of Rome?
- ... that Perplexities after Escher, a composition for heckelphone, string quartet and double bass, is based on five graphic artworks by M. C. Escher?
In the news
_02_(cropped).jpg)
- Syrian rebel forces capture Damascus following multiple offensives as overthrown president Bashar al-Assad (pictured) flees to Russia.
- Notre-Dame de Paris reopens following reconstruction after the 2019 fire.
- The first round of the Romanian presidential election is annulled by the Constitutional Court following allegations of Russian electoral interference.
- The French government, led by Michel Barnier, collapses following a vote of no confidence by the National Assembly.
On this day
December 12: Beginning of the Yule Lads' arrival in Iceland
- 627 – At the Battle of Nineveh, the Byzantine army under Emperor Heraclius defeated the forces of Sasanian emperor Khosrow II, commanded by Rhahzadh, near present-day Mosul, Iraq.
- 1936 – Republic of China leader Chiang Kai-shek was kidnapped by Marshal Chang Hsueh-liang, a former warlord of Manchuria.
- 1988 – Three trains collided near Clapham Junction railway station in London, killing 35 people and injuring 484 others.
- 2000 – The U.S. Supreme Court ruled in Bush v. Gore that the recount of ballots cast in Florida for the presidential election be stopped, effectively making George W. Bush (pictured) the winner.
- 2021 – At the season-ending Abu Dhabi Grand Prix, Max Verstappen overtook Lewis Hamilton on the final lap to become World Drivers' Champion.
- Geoffrey (d. 1212)
- Edvard Munch (b. 1863)
- Ikuhiko Hata (b. 1932)
- Maʻafu Tukuiʻaulahi (d. 2021)
Today's featured picture
.jpg)
|
Marcelo Rebelo de Sousa (born 12 December 1948) is a Portuguese politician and academic. He has been the 20th and current president of Portugal since 9 March 2016. As a member of the Social Democratic Party, he previously served as a minister and parliamentarian in the Assembly of the Republic. This photograph of Rebelo de Sousa was taken in 2017 at Web Summit, an annual technology conference held in Lisbon. Photograph credit: João Pedro Correia
Recently featured:
|
Portals
Categories
Arts – Culture by region – Languages – Literature – Mass media – Movements – Mythology – Popular culture – Religion – Sports – Traditions – Travel
Animation – Celebrities – Dance – Entertainers – Festivals – Games – Hobbies – Humour – Music – Parties – Radio – Television – Toys
Africa –
Antarctica –
Asia –
Australia –
Europe –
North America –
Oceania –
South America
Cities –
Climate –
Countries –
Landforms –
Maps –
Parks –
Subterranea –
Towns
Algebra – Analysis – Arithmetic – Computer science – Economics – Equations – Geometry – Logic – Measurement – Numbers – Proofs – Philosophy – Theorems – Trigonometry – Statistics
Astronomy – Biology – Chemistry – Earth sciences – Ecology – Information science – Natural hazards – Neuroscience – Physics – Space
Anthropology – Archaeology – Business – Communication – Demographics – Economics – Finance – Government – History – Law – Linguistics – Philosophy – Politics – Psychology – Sociology – Sexology
Sister Projects
Wikipedia is run by the non-profit Wikimedia Foundation. Wikimedia operates several other multilingual and open-content wiki projects:
Meta-Wiki — Coordination of all Wikimedia projects
Wiktionary — A multilingual dictionary and thesaurus
Wikibooks — Free textbooks and manuals
Wikiquote — A collection of quotations
Wikisource — Free source documents
Wikinews — Free content news source
Wikipedia in other languages
This Wikipedia is written in English. Many other Wikipedias are available; some of the largest are listed below.
-
1,000,000+ articles
-
250,000+ articles
-
50,000+ articles
If you find this encyclopedia or its sister projects useful, please consider making a donation.