The Tolkien Society did not become a legal entity until a constitution was finally ratified on 15 January 1972. It later obtained charitable status in England and Wales on 7 July 1977. An AGM has been held each year since 1972, and since 1973 has featured a talk from a guest speaker. It is one of the three main annual Tolkien Society events, the largest and most popular being "Oxonmoot". In the December 1973 issue of the fanzine "Nazgul", contributor John Abbot asked, "[w]hat do you think of the idea of Oxford Moot this year?" The 1974 AGM approved the idea, and the first Oxonmoot met at The Welsh Pony 13–15 September later that year. The first (near-)annual Tolkien Society "workshop" was held on 22 March 1986, morphing into the "Tolkien Society Seminar" from 1989 onward. The more informal "Summermoot" was held on an irregular basis in the 1980s and 1990s, occasionally hosted by Joanna Tolkien and Hugh Baker at their farm in Wales. According to their son (and Tolkien's great-grandson) Royd Tolkien:  The Tolkien Society has also organized a number of major conferences to celebrate significant Tolkienian anniversaries. "The J.R.R. Tolkien Centenary Conference" at Keble College, Oxford, marked one-hundred years since Tolkien's birth in 1992. "Tolkien 2005: The Ring Goes Ever On" celebrated the fiftieth anniversary of "The Lord of the Rings" at Aston University, Birmingham. "The Return of the Ring: Celebrating Tolkien in 2012" marked seventy-five years since the publication of "The Hobbit" at Loughborough University, and received a special video message from director Peter Jackson and artists John Howe and Alan Lee. Vera Chapman first contacted J. R. R. Tolkien on behalf of the Tolkien Society upon the suggestion of Joy Hill, Tolkien's secretary during the 1960s. On 1 May 1970 she wrote Tolkien a letter introducing the Society and its aims. Later, following the announcement that Tolkien had been awarded a CBE in the New Year's Honours, the Society sent Tolkien a telegram on his eightieth birthday on 3 January 1972. The Society also sent him a gift of tobacco in a green china jar, along with a congratulatory note. That evening, Joy Hill telephoned Chapman to say that "[o]f all the tributes he [Tolkien] received, this was the one that gave the greatest pleasure.