In her bright head scarves and long, flowy dresses, Yonghua Zheng is a recognisable figure around Sangpo in Henan province, central China. This is because Zheng is an imam – or Ahong – of an all-women mosque in the hamlet. More amazingly, Zheng is not alone in the province; becoming a female Ahong is a 400-year-old custom in the province where Islam has taken root for over