|Ages||13, 14, 25|
|Purpose||Язык общего назначения|
|ActiveNow||Project is active|
Prolog, developed in 1970s, was a popular rule-based programming language, even among novice programmers. Its interface was similar to a command-line. In Prolog, the user could state facts about the world to execute commands. Prolog avoided some of the complexities that students tended to struggle with, such as some loops and conditionals.