Articles groups the long-form Learn More pieces this atlas plans to write for its own entities, drafted in pairs per subject once article authoring resumes. Belongs here: a pending or published article and the entity it discusses, covering a pioneer's career, a language's development or a system's history in more depth than the entity's own structured facts allow. Does not belong here: any subject-matter entity itself, such as a language, a system or a pioneer, which is filed under its own type instead.