Second migration to Abyssinia Second migration to Abyssinia Following the migration and return of the most Sahabas from the first migration to Abyssinia (Sa'd ibn abi Waqqas and some did not return but left Abyssinia by sea for preaching overseas to east Asia), the Muslims continued to suffer Persecution by the Meccans. This time, in almost one hundred Muslims made a second migration back to Ethiopia where they stayed protected. After the Muslims in Arabia had migrated to Medina in and attained security, the Muslims in Ethiopia migrated back to Arabia and reunited with them in Medina after six years absence. Following the first
Known Space Known Space Known Space is the fictional setting of about a dozen science fiction novels and several collections of short stories written by Larry Niven. It has also become a shared universe in the spin-off "Man-Kzin Wars" anthologies. ISFDB catalogs all works set in the fictional universe that includes Known Space under the series name Tales of Known Space, which was the title of a 1975 collection of Niven's short stories. The first-published work in the series, which was Niven's first published piece was "The Coldest Place", in the December 1964 issue of "If" magazine, edited by Frederik Pohl. This