what is google adsense , history of Google adsense when was the adsense aproved what does the adsense Do

google launched its AsSense pregram, originally named content targeting advertising in March 2003 the AdSense name was originally used by applied Sementics, a competative offering to AdSense and then adopted  by Google after Google Applied Semantics in April 2003 Applied Semantics , was started in 1998 by Gilad Elbaz and Adam Weissman. Some advertisers complained that AdSense yielded worse results than AdWords. since it  served ads that related comtextually to the content on a web page and that content was less likely to be related to a user's commercial desires than search results. for example, someone browsing a blog  dedicated to flowers less likely to be interested in  ordering flowers than someone searching for terms related to flowers. As a result, in 2004 google allowed its advertisers to opt out of the AsSense network

{aul Buchheut the founder of Gmail had the idea to run ads within goole's e mail service But he and others say it was Susan Wojcicki , with the vacking of  Serfey Brin, who organized the team that adapted that idea into an enormously to be interested in ordering glowers than someone searching for terms related to flowers.