Inventing the URL

Intro url-started-as-udi-conversation

What is difference between URI and URL in Java?
URL stands for Uniform Resource Locator. URI stands for Uniform Resource Identifier. URL is a subset of URI that specifies where a resource exists and the mechanism for retrieving it. A URI is a superset of URL that identifies a resource either by URL or URN (Uniform Resource Name) or both. 12 July 2021

A URL in early HTML 1 was called a UDI (Universal Document Identifier) before March 1992, and followed by a "?" and its <searchpart> in the case of an Index document, later called a Query String.

An early (1993) draft of the HTML Specification referred to "Universal" Resource Locators. This was dropped some time between June 1994 (RFC 1630) and October 1994 (draft-ietf-uri-url-08.txt).

So now it is Uniform Resource Locator in HTML 2

Main Body Early <Input> command in 1991 Extract from archive To query a document (at the web server) by providing a single-line text input in a page, the HTML <isindex> tag, a somewhat "Boolean" statement, was employed in 1991, informing the reader that the document is an index document that supported keyword searches. e.g. <isindex prompt = "Search your document here" /> The list of the pages that matched with the query, was sent by the server in return. This tag was preferably placed within the <head> tag. The HTML form <input> tag is used nowadays to serve the same purpose. See this Talk Page in November 1992 below 1992NovDec Web Page Click Here for Web Page 42 by KHoadley on 13 Nov 1992 Click Here for Web Page 43 13 Nov 1992, earliest page suggesting a new system of input tags, that became part of the form command in 1993. Click Here Web Page 44 on this page by Tim Berners Lee suggested an <action> attribute (for a URL) that was later added to the form command (and isindex command) 16 Nov 92 e.g. <isindex prompt = "Search your document here" action="/action_page.html" > Further Background The first web site at "Conseil Européen pour la Recherche Nucléaire" or European Council for Nuclear Research, CERN, a provisional body founded in 1952 with the mandate of establishing a world-class fundamental physics research organization in Europe. List_of_websites_founded_before_1995 on Wikipedia html-tag-history.html list of commands HTML1 to HTML5 by Martin Rinehart

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