HTML
First developed by Tim Berners-Lee in 1990, HTML is short for Hypertext Markup Language. HTML is used to create electronic documents (called pages) that are displayed on the World Wide Web.
HTML provides the basic structure of web pages, and is your very first step into the world of coding. Knowledge of web page structure is a valuable asset for anyone to have.
CSS
Cascading Style Sheets (CSS) is a stylesheet language used to describe the presentation of a document written in HTML or any XML-based markup language.
CSS describes how elements should be rendered on screen, on paper, in speech, or on other media, and for describing the presentation of Web pages, including colors, layout, and fonts.
You'd learn how to style user interfaces with code.
JavaScript
JavaScript is a programming language used primarily by Web browsers to create a dynamic and interactive experience for the user. It makes an HTML page interactive and user-friendly.
JavaScript has emerged highly on the web, and it also supports external applications like PDF documents, running widgets etc. It is the most widely used client-side scripting language on the internet.
Python
Created by Guido van Rossum and first released in 1991, Python is an interpreted, high-level, general-purpose programming language. Python's design philosophy emphasizes code readability with its notable use of significant whitespace.
Its language constructs and object-oriented approach aim to help programmers write clear, logical code for small and large-scale projects.