Information:  - Sir Charles Antony Richard Hoare FRS FREng (born 11 January 1934), commonly known as Tony Hoare or C. A. R. Hoare, is a British computer scientist. He developed the sorting algorithm quicksort in 1959/1960. He also developed Hoare logic for verifying program correctness, and the formal language communicating sequential processes (CSP) to specify the interactions of concurrent processes (including the dining philosophers problem) and the inspiration for the occam programming language.  - BCPL (Basic Combined Programming Language) is a procedural, imperative, and structured computer programming language designed by Martin Richards of the University of Cambridge in 1966.  - Niklaus Emil Wirth (born 15 February 1934) is a Swiss computer scientist, best known for designing several programming languages, including Pascal, and for pioneering several classic topics in software engineering. In 1984 he won the Turing Award, generally recognized as the highest distinction in computer science, for developing a sequence of innovative computer languages.  - ALGOL X was the code name given to the programming language which the Working Group 2.1 on ALGOL of the International Federation for Information Processing was to develop as a successor to ALGOL 60. It attempted to find a "short-term solution to existing difficulties".  - ALGOL 60 (short for ALGOrithmic Language 1960) is a member of the ALGOL family of computer programming languages. It followed on from ALGOL 58 which had introduced code blocks and the codice_1 and codice_2 pairs for delimiting them. ALGOL 60 was the first language implementing nested function definitions with lexical scope. It gave rise to many other programming languages, including CPL, Simula, BCPL, B, Pascal and C.  - The International Federation for Information Processing (IFIP) is a global organisation for researchers and professionals working in the field of information and communication technologies (ICT). Established in 1960 under the auspices of UNESCO, IFIP is recognised by the United Nations and links some 50 national and international societies and academies of science with a total membership of over half a million professionals. IFIP is based in Laxenburg, Austria and is an international, non-governmental organisation that operates on a non-profit basis. Activities are coordinated by 13 Technical Committees (TCs) which are organised into more than 100 Working Groups (WGs), bringing together over 3,500 ICT professionals and researchers from around the world to conduct research, develop standards and promote information sharing. Each TC covers a particular aspect of computing and related disciplines, as detailed below.  - Stanford University, officially Leland Stanford Junior University, is a private research university in Stanford, California, adjacent to Palo Alto and between San Jose and San Francisco. Its campus is one of the largest in the United States. Stanford also has land and facilities elsewhere.  - San Francisco (SF) (Spanish for Saint Francis) officially the City and County of San Francisco, is the cultural, commercial, and financial center of Northern California. It is the birthplace of the United Nations. Located at the north end of the San Francisco Peninsula, San Francisco is about in area, making it the smallest countyand the only consolidated city-countywithin the state of California. With a density of about 18,451 people per square mile (7,124 people per km), San Francisco is the most densely settled large city (population greater than 200,000) in California and the second-most densely populated major city in the United States after New York City. San Francisco is the fourth-most populous city in California, after Los Angeles, San Diego, and San Jose, and the 13th-most populous city in the United Stateswith a census-estimated 2015 population of 864,816. The city and its surrounding areas are known as the San Francisco Bay Area, and are a part of the larger OMB-designated San Jose-San Francisco-Oakland combined statistical area, the fifth most populous in the nation with an estimated population of 8.7 million.  - Hoare logic (also known as FloydHoare logic or Hoare rules) is a formal system with a set of logical rules for reasoning rigorously about the correctness of computer programs. It was proposed in 1969 by the British computer scientist and logician Tony Hoare, and subsequently refined by Hoare and other researchers. The original ideas were seeded by the work of Robert W. Floyd, who had published a similar system for flowcharts.  - Quicksort (sometimes called partition-exchange sort) is an efficient sorting algorithm, serving as a systematic method for placing the elements of an array in order. Developed by Tony Hoare in 1959, with his work published in 1961, it is still a commonly used algorithm for sorting. When implemented well, it can be about two or three times faster than its main competitors, merge sort and heapsort.  - ALGOL W is a programming language . It was based on a proposal for ALGOL X by Niklaus Wirth and Tony Hoare as a successor to ALGOL 60 in IFIP Working Group 2.1 . When the committee decided that the proposal was not a sufficient advance over ALGOL 60 , the proposal was published as A contribution to the development of ALGOL . After making small modifications to the language Wirth supervised a high quality implementation for the IBM / 360 at Stanford University that was widely distributed . It represented a relatively conservative modification of ALGOL 60 , adding string , bitstring , complex number and reference to record datatypes and call - by - result passing of parameters , introducing the while statement , replacing switch with the case statement , and generally tightening up the language . The implementation was written in PL / 360 , an ALGOL - like assembly language designed by Wirth . The implementation included influential debugging and profiling abilities .    Given the information above, choose from the list below the object entity that exhibits the relation 'publication date' with the subject 'algol w'.  Choices: - 11  - 13  - 15  - 18  - 1934  - 1959  - 1960  - 1961  - 1966  - 1969  - 2  - 200  - 2015  - 8  - january 1934
Answer:
1966