The Festival of Ridvan is a 12-day celebration of the Baháʼí faith that begins on either April 20 or April 21, depending on the March equinox. It commemorates the 12 days Baháʼu'lláh spent in the garden of Ridvan in Baghdad, where he declared himself 'The Promised One' to his followers. The name 'Ridvan' translates to 'paradise' in Arabic. The first, ninth, and last days of the festival are considered holy, during which no work is done. The festival serves as a time for reflection and celebration of the Baháʼí faith's origins and teachings. Observances typically include gatherings, prayers, and community activities, marking the significance of Baháʼu'lláh's declaration and the establishment of the Baháʼí community.