Markdown is a lightweight markup language used to format plain text documents. It was created by John Gruber and Aaron Swartz in 2004 with the goal of making it easy to write simple, readable, and well-structured documents that could be easily converted to HTML.
Markdown uses a plain text syntax that is easy to read and write, with a minimal number of special characters. It allows you to easily create headings, lists, links, and other basic formatting elements without needing to know HTML or other markup languages.
Markdown is widely used for writing documentation, readme files, blog posts, and other types of content that need to be easily readable and formatted for online consumption. It has become a popular choice for developers, writers, and bloggers because of its simplicity and ease of use.