The Protégé project, initiated in the 1980s at Stanford University, has evolved into a widely used tool for building and maintaining ontologies. It has been recognized for its contributions to the AI community, including the "Ten Years" Award at the International Semantic Web Conference in 2014. Protégé is now available in multiple versions, including a desktop system (Protégé 5) and a web-based system (WebProtégé), which allows for collaborative ontology development. The project has been supported by various federal agencies, including the National Institutes of Health, and has played a significant role in the development of semantic web technologies and ontologies for biomedical applications. The project began as a tool for knowledge acquisition in oncology, but has since expanded to support a wide range of applications. Protégé has been instrumental in the development of ontologies for major projects such as the National Cancer Institute Thesaurus and the World Health Organization's International Classification of Diseases (ICD-11). The software has been continuously improved, with recent versions fully supporting the OWL 2.0 specification. The Protégé project has also fostered a large and active community of users, which has contributed to its success and growth. The community has helped to shape the development of the software and has provided valuable feedback that has guided the project's evolution. The project has faced challenges in securing long-term funding, but has managed to sustain itself through a combination of academic research and community support. The Protégé project has been successful in creating a platform that supports the development of ontologies and knowledge-based systems. It has been used by a wide range of users, including researchers, developers, and organizations in various fields. The project has also contributed to the broader AI community by providing a tool that supports the development of semantic web technologies and ontologies. The Protégé project continues to evolve, with ongoing research and development aimed at improving the software and expanding its capabilities.The Protégé project, initiated in the 1980s at Stanford University, has evolved into a widely used tool for building and maintaining ontologies. It has been recognized for its contributions to the AI community, including the "Ten Years" Award at the International Semantic Web Conference in 2014. Protégé is now available in multiple versions, including a desktop system (Protégé 5) and a web-based system (WebProtégé), which allows for collaborative ontology development. The project has been supported by various federal agencies, including the National Institutes of Health, and has played a significant role in the development of semantic web technologies and ontologies for biomedical applications. The project began as a tool for knowledge acquisition in oncology, but has since expanded to support a wide range of applications. Protégé has been instrumental in the development of ontologies for major projects such as the National Cancer Institute Thesaurus and the World Health Organization's International Classification of Diseases (ICD-11). The software has been continuously improved, with recent versions fully supporting the OWL 2.0 specification. The Protégé project has also fostered a large and active community of users, which has contributed to its success and growth. The community has helped to shape the development of the software and has provided valuable feedback that has guided the project's evolution. The project has faced challenges in securing long-term funding, but has managed to sustain itself through a combination of academic research and community support. The Protégé project has been successful in creating a platform that supports the development of ontologies and knowledge-based systems. It has been used by a wide range of users, including researchers, developers, and organizations in various fields. The project has also contributed to the broader AI community by providing a tool that supports the development of semantic web technologies and ontologies. The Protégé project continues to evolve, with ongoing research and development aimed at improving the software and expanding its capabilities.