Did you know that at its widest point going west to east, England is only 250 miles wide?
If you're travelling on foot at 1.5 miles per hour for eight hours a day (12 miles/day), it will take you less than three weeks to get from one coast to another. By horse, it should take you less than half (?) that time. It's really not that big of a place at all. Of course, England is but one country.
So, how big is your world? In other words, what would be the equivalent size modern-day country for your entire world? How large roughly is each nation in your world?
If you're travelling on foot at 1.5 miles per hour for eight hours a day (12 miles/day), it will take you less than three weeks to get from one coast to another. By horse, it should take you less than half (?) that time. It's really not that big of a place at all. Of course, England is but one country.
So, how big is your world? In other words, what would be the equivalent size modern-day country for your entire world? How large roughly is each nation in your world?