Railroads played an absolutely crucial role in the Industrial Revolution, since they made for the incredibly fast transfer of goods such as iron and steel that were used to build things--not to mention the transport of the workers themselves.
Mostly because they look to each story from their own experiences
After the death of Timur in 1405, power began to shift from migrating peoples to sedentary populations living in large centralized empires. After about 1683, when the last Ottoman campaign against Vienna failed, the great empires for which this period is so famous began to shrink and weaken
Significant conversions also occurred beyond the extents of the empire such as that of the Turkic tribes in Central Asia and peoples living in regions south of the Sahara in Africathrough contact with Muslim traders active in the area and Sufi orders.