Answer: over thirty thousand miles
Explanation:
In 1840 it had almost reached three thousand miles
And by 1850 it was more than 90 thousand miles.
Hmm. Well, if your thinking of the same time in history that I am...than I believe that the Americans put education at a high place in their lives. For the girls, well, they were going to get married off anyway. So why bother with their education, they were just taught how to keep house. The boys were sent to school if their parents believed that it was okie dory for them. But, if the child's parent was a farmer or something like that. Than they were more likely to stay and home. And learn the trade of their Father.
Nowadays, education is held in the highest respect. If you want a good, well paying job in your life. Than a good, solid education is the way to go. The only way to go. Collage is expected from graduates now it seems. But maybe that's just me. But, people all have their own views on education. Some find it important, and others could care less.