October 13. On this date in 1923, the National Spiritual Assembly of England met for the first time in London. In 1930 this became the National Spiritual Assembly of the Bahá'ís of the British Isles, and in 1972 of the United Kingdom (a separate National Assembly for the Republic of Ireland being established in that year).

October 13. On this date in 1923, the National Spiritual Assembly of England met for the first time in London. In 1930 this became the National Spiritual Assembly of the Bahá'ís of the British Isles, and in 1972 of the United Kingdom (a separate National Assembly for the Republic of Ireland being established in that year).

From "United Kingdom: History of the Bahá'í Faith" by Moojan Momen...

On 13 October 1923, in London, the National Spiritual Assembly of England came into being. In 1930 this became the National Spiritual Assembly of the Bahá'ís of the British Isles, and in 1972 of the United Kingdom (a separate National Assembly for the Republic of Ireland being established in that year).