The Persian Empire was conquered by the Greeks led by Alexander the Great. Starting in the year 334 BC, Alexander the Great conquered the Persian Empire from Egypt all the way to the borders of India.
For example, the URL http://example.org/wiki/Main_Page refers to a resource identified as /wiki/Main_Page whose representation, in the form of HTML and related code, is obtainable via Hypertext Transfer Protocol (http) from a network host whose domain name is example.org.
URL -Uniform Resource Locator. A URL is the Internet address of a particular site or document and the web add. www - World Wide Web url just like a database of www when we download a file from any site the link which providing thet file is URL link. URL, contrary to some other answers, is not Universal Resource Locator;.