LOL what is 250 years old?  America is two continents, fool.  Is china 50 years old? 
The most advanced agricultural engineers of all history lived in America thousands of years ago.   The education system is really good at what it was designed for..  keeping people dumb.  you can read about the philosophy of the people that set it up they are pretty explicit.  Sadly that kind of populace isn't as productive as it was when it was set up.