This led to the apparent destruction of Earth and the Hegira. The first meeting took place in 18th of Rajab month 367 lunar hegira. The Norman kings continued to strike coins in Arabic with Hegira dates. During the first Hegira, the companions of prophet Muhammad were received in the Aksumite kingdom. The raid was ordered by Muhammad seven to nine months after the Hegira. Many of Muhammad's relatives were buried in this cemetery before his Hegira in 622. Hegira is a 1979 science fiction novel by American writer Greg Bear.