Worked on the NclRSE-Training/countries repository to implement foundational geography data storage by introducing the IrajCapital file, which contains baseline country information such as population and capital city. This initial setup established a consistent structure for storing and referencing geographical data, supporting future enhancements like country-level analytics and localization in training materials. The work involved data modeling and file management, utilizing YAML for structured data representation and Git for version control. By focusing on data initialization, the contribution laid the groundwork for scalable country data validation and analytics, ensuring that future features can build on a reliable and extensible data foundation.