Anrhydeddus Gymdeithas y Cymmrodorion Honourable Society of Cymmrodorion

Founding of the Society
Year	Authority / Notes
1751	According to its website (), the Society was founded in 1751 for the encouragement of literature, science and the arts as connected with Wales. Since the journals of the Society did not begin until the 19th century, we must examine the monographs of the Society in order to see which names were used for the Society in the early years of its existence. The Oxford Univ. cat. lists the following 1766 title The British zoology Class I Quadrupeds II Birds. Published under the inspection of the Cymmrodorion society : instituted for the promoting useful charities, and the knowledge of nature, among the descendants of the ancient Britons... . The Oxford Univ. cat. lists the following 1773 title The depositions, arguments and judgement in the cause of the church-wardens of Trefdraeth with the author statement Published by the Society of Cymmrodorion. The Oxford Univ. cat. lists the following 1777 title Constitutions of the Honourable society of Cymmrodorion in London, begun in 1751, revised ... 1753, 1755 and 1777.
Seat of the Society
City	Authority / Notes
London England	This location is supported by its website ()
Name of the Society
Dates	Name	Authority
1766	Cymmrodorion Society : instituted for the promoting useful charities, and the knowledge of nature, among the descendants of the ancient Britons	Oxford Univ. cat. lists a 1766 title beginning British zoology Class I Quadrupeds II Birds. with this name in the author statement.
1773	Society of Cymmrodorion	Oxford Univ. cat. lists a 1766 title beginning The depositions, arguments and judgement in the cause of the church-wardens of Trefdraeth with this name in the author statement.
1777	Honourable Society of Cymmrodorion in London	Oxford Univ. cat. lists a 1777 title beginning Constitutions of the Honourable society of Cymmrodorion in London, begun in 1751, revised ... 1753, 1755 and 1777 with this name in the author statement.
1822 - 1843	Cymmrodorion, or, Metropolitan Cambrian Institution	Its publications.
1877 - 1886	Cymmrodorion Society of London	Its publications.
1886 -	Honourable Society of Cymmrodorion	Its publications.
1982 -	Anrhydeddus Gymdeithas y Cymmrodorion	Its publications.
Anrhydeddus Gymdeithas y Cymmrodorion = Honourable Society of Cymmrodorion

Journals of the Society
Years	Full Journal Title	Abbrev.
1822 - 1843 (Vol 1, [pt. 1] - v. 2, pt. 4)   A	Transactions of the Cymmrodorion, or, Metropolitan Cambrian Institution The record in the Oxford Univ. cat. gives the standardized corporate author heading for this title as Honourable Society of Cymmrodorion (London, England), confirming that this title is indeed a publication of the Society. [Oxford Univ. cat.]
1877, Jan. - 1886? (Vol. 1, pt. 1 - v. 7, pt. 2)   B	Y Cymmrodor, embodying the transactions of the Cymmrodorion Society of London Vols. 1-11 of B and C include the Transactions of the Society for 1877-1890/91. Continued by C. [Oxford Univ. cat.]
1886 - 1951? (Vol. 7, pt. 3 - v. 50)   C	Cymmrodor : the magazine of the Honourable Society of Cymmrodorion Vol. 1-11 of B and C include the Transactions of the Society for 1877-1890/91, after which they were continued separately under the title, Transactions, i.e. as D. Continues B. Continued in part by D. [Oxford Univ. cat.]
Session 1892/93 -   D	Transactions of the Honourable Society of Cymmrodorion Previous to 1892 the Transactions were included in A and B, v. 1-11, 1877-1890/91. Vols. for 1982- have title also in Welsh: Trafodion Anrhydeddus Gymdeithas y Cymmrodorion. Vols. for sessions 1994- called also: new series, v.1 (1995)- Continues in part C. [Oxford Univ. cat.]	Cymmrod. Soc. Trans. [J. Roman Studies, Vol. 11 (1921), p.81 cites 1920-1.] Cymmrodorion Soc. Trans. [J. Roman Studies, Vol. 13 (1923), p.ix cites 1908-9.] Tr. Cymmr. Soc. [Speculum, Vol. 13, No. 2 (Apr., 1938), p.142 cites 1899.] Tr. of the Hon. Soc. of Cymmrodorion [J. Roman Studies, Vol. 11 (1921), p.244 cites 1920-1921.] Trans. Cym. Soc. [English Historical Rev., Vol. 53, No. 212 (Oct., 1938), p.629 cites 1937.] Trans. Cymmrodorion Soc. [Folklore, Vol. 12, No. 1 (Mar., 1901), p.66 cites 1894-5.] Trans. Hon. Soc. Cymmrod. [Music & Letters, Vol. 23, No. 2 (Apr., 1942), p.143 cites Sessions 1909-10, 1913-4 and 1933-4-5.] Trans. Hon. Soc. Cymmrodorion [J. Roy. Anthrop. Instit., Vol. 48 (Jan. - Jun., 1918), p.161 cites 1917.] Trans. Hon. Soc. of Cymmrodorion [Geographical Review, Vol. 5, No. 3 (Mar., 1918), p.216 cites Session 1915-16.] Trans. of Cymmrodorion Soc. [English Historical Rev., Vol. 59, No. 235 (Sep., 1944), p.351 cites 1940.] Trans. of Hon. Soc. of Cymmrodorion [English Historical Rev., Vol. 60, No. 238 (Sep., 1945), p.438 cites session 1942.] Trans. of the Hon. Soc. of Cymmrodorion [J. Roman Studies, Vol. 8 (1918), p.195 cites 1908-9.] Trans. Soc. Cymmr. [Speculum, Vol. 14, No. 3 (Jul., 1939), p.348 cites 1899-1900.] Trans. Soc. Cymmrodorion [Economic History Review, Vol. 2, No. 2 (Jan., 1930), p.326 cites 1897.] Transact. Cymmrodorion Soc. [Speculum, Vol. 13, No. 2 (Apr., 1938), p.142 cites 1899.] Transactions Hon. Soc. Cymmrodorion [English Historical Rev., Vol. 48, No. 190 (Apr., 1933), p.286 cites 1925-6.] Transactions of the Cymmrodorion Soc. [Speculum, Vol. 3, No. 1 (Jan., 1928), p.32 cites 1912-13.] Transactions of the Hon. Soc. of Cymmrodorion [English Historical Rev., Vol. 35, No. 137 (Jan., 1920), p.67 cites 1908-9.]
1892 - 1936 No.1 - 13   E	Cymmrodorion Record Series The corporate author is given as Cymmrodorion Society. [Oxford Univ. cat.]	Cymmrodorion Rec. Ser. [Past and Present, No. 81 (Nov., 1978), p.7 cites iii, 1899-1901.] Cymmrodorion Rec. Series [Am. Hist. Rev., Vol. 34, No. 3 (Apr., 1929), p.511 cites XII. (1927).] Hon. Soc. of Cymmrodorion, Record Series [English Historical Rev., Vol. 43, No. 169 (Jan., 1928), p.92 cites no. 11.]