Question: When did Spike Milligan write Adolf Hitler: My Part in His Downfall?

Context paragraphs:
The Fear of Wages: "The Fear of Wages" is an episode of "The Goon Show", a British radio comedy, written by Spike Milligan and Larry Stephens.  As the 25th episode of the sixth series, it was first broadcast on 6 March 1956 and was among the shows first repeated in the 1970s following the success of The Last Goon Show of All in 1972.  Appearing on a program entitled 'Goons Night' on BBC Radio 2, broadcast 29 May 2001, Spike Milligan announced this as his favourite episode of The Goon Show.

Goodbye Soldier: Goodbye Soldier is Spike Milligan's sixth volume of autobiography.  World War II has ended, Milligan continues NAAFI performances.  During this time in Italy and Austria he tours with a large group as one of The Bill Hall Trio.  While music and war were backdrops for the first books, music and his relationship with Toni Fontana are here.  (A relationship described in longings using tourist-guide Italian, and a repetitive fascination with being called “Terr-ee”.)  The book covers June to September 1946, at which point Milligan is released from service and sails home for England.  The text is a fifth shorter than the longest volume "Mussolini: His Part in My Downfall".  The jokes are sometimes sparse.

The Bill Hall Trio: The Bill Hall Trio was a musical comedy act originally consisting of Bill Hall (violin), Johnny Mulgrew (double bass) and Spike Milligan (guitar).  They met through the Combined Services Entertainment programme during World War II and the trio continued in its original form until 1947/8.  After Milligan left, the Bill Hall Trio obtained a new guitarist (who according to Mulgrew was like George Formby) and other new members whenever old members left or died.  The group went on until the death (from throat cancer]) of Johnny Mulgrew in the 1980s.  (Johnny Mulgrew died on 1 August 1985, as Peace Work was published in 1992, and in it Milligan stated that when Johnny Mulgrew died 6 years ago, the trio came to an end.) .  In an interview with Tony Brown in 1970, Spike mentions that Bill Hall and Johnny Mulgrew were already dead then.  "The trio I worked with was the Bill Hall Trio—which became Hall, Norman and Ladd eventually.  Bill Hall died from consumption; Johnny Mulgrew who used to play bass with the Ambrose Octet before the war, he died—also from consumption.  I think the act is still going."

Spike Milligan: Terence Alan Milligan {'1': ", '2': ", '3': ", '4': "} (16 April 1918 – 27 February 2002) was a British-Irish comedian, writer, musician, poet, playwright and actor.  The son of an Irish father and an English mother, his early life was spent in India where he was born.  The majority of his working life was spent in the United Kingdom.  He disliked his first name, and began to call himself "Spike" after hearing a band on Radio Luxembourg called Spike Jones and his City Slickers.

Adolf Hitler: My Part in His Downfall (film): Adolf Hitler: My Part in His Downfall is a 1973 film adaptation of the of Spike Milligan's autobiography.  It starred Jim Dale as the young Terence "Spike" Milligan, while Milligan himself played the part of his father, Leo.  Dale was nominated for the BAFTA Award for Most Promising Newcomer to Leading Film Roles for his performance.

Q... (TV series): Q.. .  is a surreal television comedy sketch show written by Spike Milligan and Neil Shand, and starring Spike Milligan with a number of supporting players, usually including Julia Breck, John Bluthal, Bob Todd, and John Wells.  The show ran from 1969 to 1982 on BBC2.  There were six series in all, the first five numbered from "Q5" to "Q9", and a final series titled "There's a Lot of It About".  The first and third series ran for seven episodes, and the others for six episodes, each of which was 30 minutes long.

Monty: His Part in My Victory: Monty: His Part in My Victory, Spike Milligan's third volume of war memoirs, co-written with Jack Hobbs, runs to only about 90 pages of text.  It recounts a period when the Nazis have been defeated in Africa and Milligan is not fighting.  The book mostly describes Milligan's activities on leave, playing in a band and minor adventures and tribulations while on duty.  Events span from May to September 1943: just after Operation "Torch", the liberation of Africa in World War II, to Milligan's embarkation in Salerno, Italy.

According to Spike Milligan: According to Spike Milligan is a series of literary pastiche novels written by Spike Milligan from 1993 to 2000.  Each part of the series was a rewriting of an original novel, with surreal comic elements added that fit into certain points of the originals, whilst at the same time poking fun at the situations involved.

Adolf Hitler: My Part in His Downfall: Adolf Hitler: My Part in His Downfall, published in 1971, is the first volume of Spike Milligan's war memoirs.  The book spans the period from Britain's declaration of war on Germany to when Milligan lands in Algeria as a part of the Allied liberation of Africa.

Personal standard of Adolf Hitler: The personal standard of Adolf Hitler was designed after Reichspräsident Paul von Hindenburg died on 2 August 1934.  Adolf Hitler abolished the title "Reichspräsident" and in its place instituted the title of "Führer" which henceforth could only be used when referring to him personally.  Hindenburg used a personal standard consisting of a black eagle on a square gold background edged by a border of black, white and red bands.  Hitler decided on 19 August 1934 to adopt a personal standard for himself, which was called "Personal standard for Adolf Hitler as Leader and Chancellor of the German Nation".  As he was also Supreme Commander of the Armed Forces it was somewhat later known as "The personal standard for Adolf Hitler as Leader and Supreme Commander of the Armed Forces" (German: "Standarte des Führers und Obersten Befehlshabers der Wehrmacht").

Supporting paragraphs: Adolf Hitler: My Part in His Downfall Spike Milligan
Answer: 1971