He spoke Old High German. Charlemagne was very interested in saving and conserving his mother tongues. He wanted writers not only to make poems and stories in Latin (was spoken at his court) but also in his mother tongue. Old High German died out as a language in the 11th century to make place for middle high german.
The Owl Project. The Owl Project is a community-building art organization that seeks to create large and small works of art by kids and grown ups for their communities.
OWL has been designed to meet this need for a Web Ontology Language. OWL is part of the growing stack of W3C recommendations related to the Semantic Web. XML provides a surface syntax for structured documents, but imposes no semantic constraints on the meaning of these documents. The OWL Web Ontology Language Test Cases document contains a large set of test cases for the language; 2  The OWL Use Cases and Requirements document contains a set of use cases for a web ontology language and compiles a set of requirements for OWL.