SGML

SGML (Standard Generalized Markup Language) is a system for defining how documents are structured and tagged. Think of it as a blueprint that helps ensure consistent formatting and organization of complex documents, making them easier to manage, search, and exchange across different systems. It's like creating a set of rules so that all parts of a document—titles, sections, references—are labeled in a standardized way. SGML is the foundation for many markup languages, including HTML, which is used to build websites. It provides the flexibility to handle various document types while maintaining clear, organized structure.