when did c coding come out code example

Example 1: c

/* Answer to: "c" */

/*
  To learn about the letter 'C' you go to the Wikipedia:
  https://en.wikipedia.org/wiki/C
  ...but this is a Chrome Exstention for developers:

  C is a general-purpose, procedural computer programming language
  supporting structured programming, lexical variable scope, and
  recursion, while a static type system prevents unintended
  operations.
  
  Here's the Wikipedia:
  https://en.wikipedia.org/wiki/C_(programming_language)
*/

Example 2: c

#include <stdio.h>

int main() {
   printf("Hello, world!");
   return 0;
}