Question: SNOBOL ("StriNg Oriented and symBOlic Language") is a series of computer programming languages developed between 1962 and which year, at AT&T Bell Laboratories?

Context articles: Fourth-generation programming language
SNOBOL
Non-English-based programming languages
Ralph Griswold
Kojo (learning environment)
Toy programming language
Language-oriented programming
AT&amp;T Corporation
Iota and Jot
Esoteric programming language

A fourth-generation programming language (4GL) is any computer programming language that belongs to a class of languages envisioned as an advancement upon third-generation programming languages (3GL).
 Each of the programming language generations aims to provide a higher level of abstraction of the internal computer hardware details, making the language more programmer-friendly, powerful and versatile.
 While the definition of 4GL has changed over time, it can be typified by operating more with large collections of information at once rather than focusing on just bits and bytes. Languages claimed to be 4GL may include support for database management, report generation, mathematical optimization, GUI development, or web development.
 Some researchers state that 4GLs are a subset of domain-specific languages.
SNOBOL ("StriNg Oriented and symBOlic Language") is a series of computer programming languages developed between 1962 and 1967 at AT&T Bell Laboratories by David J. Farber, Ralph E. Griswold and Ivan P. Polonsky, culminating in SNOBOL4.
 It was one of a number of text-string-oriented languages developed during the 1950s and 1960s; others included COMIT and TRAC.
Non-English-based programming languages are computer programming languages that, unlike better-known programming languages, do not use keywords taken from, or inspired by, the English vocabulary.
Ralph E. Griswold (May 19, 1934, Modesto, CA – October 4, 2006, Tucson, AZ) was a computer scientist known for his research into high-level programming languages and symbolic computation.
 His language credits include the string processing language SNOBOL, SL5, and Icon.
Kojo is a programming language and integrated development environment (IDE) for computer programming and learning.
 It has many different features that enable playing, exploring, creating, and learning in the areas of computer programming, mental skills, (interactive) math, graphics, art, music, science, animation, games, and electronics.
 Kojo draws ideas from the programming languages Logo and Processing.
A toy language is a computer programming language that lacks the requirements to create reliable, maintainable computer programs in a production environment.
 Categorizing a programming language as a toy language is difficult, however, as the definition is often subjective.
 Also, a "toy" language is distinguished from domain-specific languages and esoteric programming languages.
 A "problem domain" language is a limited programming language made for a specific purpose, such as the PostScript language used in PDF documents, or the limited instruction set used to program the multiple core graphics processing unit in a video card.
 An "esoteric language" is a programming language designed to test the boundaries of computer programming language design, as a proof of concept, as software art, or as a joke, such as Befunge or LOLCODE.
Language-oriented programming (LOP) is a style of computer programming in which, rather than solving problems in general-purpose programming languages, the programmer creates one or more domain-specific languages for the problem first, and solves the problem in those languages.
 This concept is described in detail in the paper by Martin Ward entitled "Language Oriented Programming", published in "Software - Concepts and Tools", Vol.15, No.4, pp 147-161, 1994.
AT&T Corp., originally the American Telephone and Telegraph Company, is the subsidiary of AT&T that provides voice, video, data, and Internet telecommunications and professional services to businesses, consumers, and government agencies.
In formal language theory and computer science, Iota and Jot (from Greek iota ι, Hebrew yodh י, the smallest letters in those two alphabets) are languages, extremely minimalist formal systems, designed to be even simpler than other more popular alternatives, such as the lambda calculus and SKI combinator calculus.
 Thus, they can also be considered minimalist computer programming languages, or Turing tarpits, esoteric programming languages designed to be as small as possible but still Turing-complete.
 Both systems use only two symbols and involve only two operations.
 Both were created by professor of linguistics Chris Barker in 2001. "
Zot" (2002) is a successor to Iota that supports input and output.
An esoteric programming language (sometimes shortened to esolang) is a programming language designed to test the boundaries of computer programming language design, as a proof of concept, as software art, as a hacking interface to another language (particularly functional programming or procedural programming languages), or as a joke.
 The use of "esoteric" distinguishes these languages from programming languages that working developers use to write software.
 Usually, an esolang's creators do not intend the language to be used for mainstream programming, although some esoteric features, such as visuospatial syntax, have inspired practical applications in the arts.
 Such languages are often popular among hackers and hobbyists.