Nineteen-Day Fast to be the one foretold by the Báb, accepted the fast, but altered many of its details and regulations. The Bahá'í fast resembles fasting practices of several other religions. Lent is a period of fasting for Christians, Yom Kippur and many other holidays for Jews, and the fast of Ramadan is practiced by Muslims. The Bahá'í fasting most resembles the fast of Ramadan, except that the period of fasting is defined as a fixed Bahá'í month, whereas Muslims fast during a lunar month, whose specific Gregorian dates vary from year to year. Bahá'u'lláh established the guidelines of the fast in
Tariq Ramadan move as 'islamophobic' and 'politically charged'. The Court of Rotterdam District ruled in 2012 in a civil law case that the Erasmus University acted "careless" by dismissing Ramadan on short notice. The dismissal by the municipality of Rotterdam, however, was not careless according to the Court. Beginning September 2009, Ramadan was appointed to the chair in Contemporary Islamic Studies at Oxford University. Ramadan established the "Mouvement des Musulmans Suisses" (Movement of Swiss Muslims), which engages in various interfaith seminars. He is an advisor to the EU on religious issues and was sought for advice by the EU on a commission