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=== '''Help Write Articles about our World''' ===


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Welcome to '''Citizendium''', a wiki for providing free knowledge where authors use their '''real names'''.  We regard information as a public good and welcome anyone who wants to share their knowledge on virtually any subject.  Our online community prides itself on being congenial and supportive.  Read more about <big>'''[[CZ:About|who we are]]'''</big>.


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===Welcome!===
We are an encyclopedia project — and more!


We are a [[CZ:We aren't Wikipedia|different]] sort of Web 2.0 wiki:
<blockquote>
* We aim at credibility and quality, not just quantity.
 
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=== Some of our finest <font size=1>[ [[CZ:Approval Process|about]] ]</font> ===
</blockquote>
[[Image:Approved.png|35px|35px|right]]
* [[:Category:Approved Articles|Approved Articles]]
* [[:Category:Developed Articles|Developed Articles]] <font size=1>(over 700)</font>
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=== Article of the Week <font size=1>[ [[CZ:Article of the Week|about]] ]</font> ===
[[Image:Sachisholmmodified.jpg|left|thumb|150px|Shirley Chisholm]]'''[[Shirley Chisholm|Shirley Anita Chisholm]]''' (1924-2005) was an [[United States|American]] political figure who served in the [[House of Representatives]] from 1969 to 1983, representing [[New York]]'s 12th Congressional District. She was the first [[African-American]] woman to serve as a [[United States Congress|congressional representative]] in the United States. Chisholm was a member of the [[Democratic Party]]. She unsuccessfully ran for the Democratic nomination for [[U.S. Presidents|presidency]] in 1972. During her colorful and controversial career, Chisholm was renowned for her political [[liberalism]] and her advocacy of rights and equality for the underprivileged people, such as African-Americans, the poverty-stricken, and women.
<font size=1>[[Shirley Chisholm|['''more...''']]]</font>


=== New Draft of the Week <font size=1>[ [[CZ:New Draft of the Week|about]] ]</font> ===
 
[[Image:Luther-Cranach.jpg|thumb|150px]]'''[[Martin Luther]]''' (1483-1546), German religious reformer and theologian began the [[Protestantism|Protestant Reformation]] and founded the Lutheran Church as a branch of [[Christianity]] dominant in Germany. There were many different independent German-speaking countries with different rulers; collectively they were called "Germany" and Scandinavia. Previous reform movements in the [[Roman Catholic Church]] were small-scale and did not disrupt the medieval Church. Luther was the first to definitively break the unity of Roman Catholic Christendom. His Lutheran Church broke with the pope, but became subservient to the state. He reshaped German religious culture through rejection of Catholic liturgy and celibacy; he created a new Lutheran liturgy using his very popular hymns and his translation of the Bible into German helped to shape the German language.
 
<font size=1>[[Martin Luther|['''more...''']]]</font>
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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<h4 style="margin:0 0 0.75em; padding:0;"> '''Article counts''' </h4>
<p style="line-height:21px; padding-left:20px;">
[[:Category:Citable versions of articles|Citable Articles]] <font size=1>('''{{PAGESINCAT:Citable versions of articles}}''')</font><br />
[[:Category:Developed Articles|Developed Articles]] <font size=1>('''{{PAGESINCAT:Developed Articles}}''')</font><br />
[[:Category:Developing Articles|Developing Articles]] <font size=1>('''{{PAGESINCAT:Developing Articles}}''')</font><br />
[[:Category:Stub Articles|Stubs]] <font size=1>('''{{PAGESINCAT:Stub Articles}}''')</font><br />
<small>([[:Category:CZ Live|{{PAGESINCAT:CZ Live}} total articles]])</small>
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<h3 style="margin-top:0; padding-top:0.6em; border-top:1px dotted #e0e0e0;">
<big>[[CZ:Featured article|Featured Article]]: ''[[{{FeaturedArticleTitle}}]]''</big>
</h3>
{{CZ:Featured article/Current}}
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<div style='text-align: right;'><small>''[[{{FeaturedArticleTitle}}|Continued]]...''</small></div>

Latest revision as of 19:28, 18 February 2024

Help Write Articles about our World

Welcome to Citizendium, a wiki for providing free knowledge where authors use their real names. We regard information as a public good and welcome anyone who wants to share their knowledge on virtually any subject. Our online community prides itself on being congenial and supportive. Read more about who we are.


See Recent Changes—an overview of articles being worked on now.

Become a member--it's free!

Agriculture Earth Sciences Journalism Physics
Anthropology Economics Law Politics
Archaeology Education Library & Info. Sci. Psychology
Architecture Engineering Linguistics Religion
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Article counts

Citable Articles (145)
Developed Articles (1,145)
Developing Articles (8,073)
Stubs (8,018)
(17,501 total articles)

Well begun is half done.
Aristotle

       —add a quotation about knowledge or writing

Featured Article: Caterpillar Club/Citable Version

The Irvin pin. The eyes have always been red, but there are urban legends about the meanings of other colors.
A pin from another company, possibly Switlik or Standard Parachute. This style is common in catalogs and auctions of military memorabilia.

The Caterpillar Club is an informal association of people who have successfully used a parachute to bail out of a disabled aircraft. After authentication by the parachute maker, applicants receive a membership certificate and a distinctive lapel pin.

History

Before April 28, 1919 there was no way for a pilot to jump out of a plane and then to deploy a parachute. Parachutes were stored in a canister attached to the aircraft, and if the plane was spinning, the parachute could not deploy. Film industry stuntman Leslie Irvin developed a parachute that the pilot could deploy at will from a back pack using a ripcord. He joined the Army Air Corps parachute research team, and in April 1919 he successfully tested his design, though he broke his ankle during the test. Irvin was the first person to make a premeditated free fall jump from an airplane. He went on to form the Irving Airchute Company, which became a large supplier of parachutes. (A clerical error resulted in the addition of the "g" to Irvin and this was left in place until 1970, when the company was unified under the title Irvin Industries Incorporated.) The Irvin brand is now a part of Airborne Systems, a company with operations in Canada, the U.S. and the U.K.[1].

An early brochure [2] of the Irvin Parachute Company credits William O'Connor 24 August 1920 at McCook Field near Dayton, Ohio as the first person to be saved by an Irvin parachute, but this feat was unrecognised. On 20 October 1922 Lieutenant Harold R. Harris, chief of the McCook Field Flying Station, jumped from a disabled Loening W-2A monoplane fighter. Shortly after, two reporters from the Dayton Herald, realising that there would be more jumps in future, suggested that a club should be formed. 'Caterpillar Club' was suggested because the parachute canopy was made of silk, and because caterpillars have to climb out of their cocoons and fly away. Harris became the first member, and from that time forward any person who jumped from a disabled aircraft with a parachute became a member of the Caterpillar Club. Other famous members include General James Doolittle, Charles Lindbergh and (retired) astronaut John Glenn.

In 1922 Leslie Irvin agreed to give a gold pin to every person whose life was saved by one of his parachutes. By 1945 the number of members with the Irvin pins had grown to over 34,000. In addition to the Irvin Air Chute Company and its successors, other parachute manufacturers have also issued caterpillar pins for successful jumps. Irvin/Irving's successor, Airborne Systems Canada, still provides pins to people who made their jump long ago and are just now applying for membership. Another of these is Switlik Parachute Company, which though it no longer makes parachutes, still issues pins.

Footnotes