
C is a general-purpose computer programming language. It was created in the 1970s by Dennis Ritchie, and remains very widely used and influential. By design, C's features cleanly reflect the capabilities of the targeted CPUs.
Designed by: Dennis Ritchie
First appeared: 1972; 52 years ago

C++ is a high-level, general-purpose programming language created by Danish computer scientist Bjarne Stroustrup.
Designed by: Bjarne Stroustrup
First appeared: 1985; 39 years ago

HTML is a markup language that web browsers use to interpret and compose text, images, and other material into visible or audible web pages.
Developed by : WHATWG [World Wide Web Consortium] (W3C; formerly)
Initial release 1993; 31 years ago

Cascading Style Sheets is a style sheet language used for specifying the presentation and styling of a document written in a markup language such as HTML or XML. CSS is a cornerstone technology of the World Wide Web, alongside HTML and JavaScript.
Developed by: World Wide Web Consortium (W3C)
Initial release: 17 December 1996; 27 years ago