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
What Is Intelligence? What Is Intelligence? What Is Intelligence?: Beyond the Flynn Effect is a book by psychologist James R. Flynn which outlines his model for an explanation of the eponymous Flynn effect. The book summarizes much of the work of Flynn in this area, as well as that of his colleague William Dickens of the Brookings Institution. The book begins with a description of what has generally become known as "the Flynn effect": the steady rise from one generation to the next in average scores on IQ tests over time. Flynn notes that this effect apparently contradicts some fundamental beliefs about IQ