The internet pioneer, Tim Berners-Lee, published a document entitled HTML Tags. The document contained a description of the first 18 HTML tags: <title> , <nextid> , <a> , <isindex> , <plaintext> , <listing> , <p> , <h1> … <h6> , <address> , <hp1> , <hp2> …, <dl> , <dt> , <dd> , <ul> , <li> , <menu> and <dir> . The design of the first version of HTML language was influenced by the SGML universal markup language.