The Baháʼí Faith was discussed in the writings of various Europeans during the lifetime of its founder, Baháʼu'lláh. His son and successor, ʻAbdu'l-Bahá, travelled to France and Great Britain and gave talks to audiences there. There is a Baháʼí House of Worship in Langenhain, Germany, which was completed in 1964. The Association of Religion Data Archives reported national Baháʼí populations ranging from hundreds to over 35,000 in 2005. The European Union and several European countries have condemned the persecution of Baháʼís in Iran.