Followed for one hundred years, one model for creating new territories was?
What type of territories do you mean?
Since this is not my area of expertise, I searched Google under the key words "model for creating new territories" to get these possible sources:
http://www.google.com/search?client=safari&rls=en&q=model+for+creating+new+territories&ie=UTF-8&oe=UTF-8
In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search. Also see http://hanlib.sou.edu/searchtools/.