In the period circa 1200-1450, scientific and technological advances in Afro-Eurasia occurred both through new discoveries and through diffusion across cultures in areas of increased interconnections, such as the Silk Roads and the Mediterranean. Develop an argument that evaluates the extent to which cross-cultural connections were the leading factor behind scientific and/or technological advances in Afro-Eurasia during this period.

The Silk Roads were the biggest land network in the time period, stretching from Constantinople all the way to the very eastern edge of China (Hangzhou). Needless to say, they were a pretty big deal in Afro-Eurasia.

the second significant cause of the great migration was the desire of black southerners to escape segregation, known euphemistically as jim crow. rural african american southerners believed that segregation - and racism and prejudice against blacks - was significantly less intense in the north.