1. "A successor to the programming language B, C was originally developed at Bell Labs by Ritchie between 1972 and 1973 to construct utilities running on Unix." (Wikipedia: C (programming language), 1.17.23 UTC 15:13)
2. "[C] has become one of the most widely used programming languages, with C compilers available for practically all modern computer architectures and operating systems." (Wikipedia: C (programming language), 1.17.23 UTC 15:13)
3. "C enables programmers to create efficient implementations of algorithms and data structures, because the layer of abstraction from hardware is thin, and its overhead is low, an important criterion for computationally intensive programs." (Wikipedia: C (programming language), 1.17.23 UTC 15:13)
4. "A consequence of C's wide availability and efficiency is that compilers, libraries and interpreters of other programming languages are often implemented in C. For example, the reference implementations of Python, Perl, Ruby and PHP are written in C." (Wikipedia: C (programming language), 1.17.23 UTC 15:13)
