Q228 refers to the unique identifier for the concept of Q228 in the Wikidata database. It is used to categorize and provide structured information about a specific subject, allowing for easy access and retrieval of data related to that topic. In the context of Wikidata, Q228 can represent various entities, such as people, places, or events. Each Q number helps users and researchers find relevant information quickly, facilitating better understanding and connections between different data points within the vast knowledge base.