Did the mongols have a positive or negative effect on the slavs? why?

The Mongols had a largely positive impact on the Slavs. This is because they brought about positive changes in transportation and the economy through improved taxation. The Mongol invasions also helped crystallize the culture and helped the Slavs to forge their identity as a people

answer; people where able to travel across the u.s.a faster than any other mode of transportation,travel time was about a week,from coast to coast