<s>[INST] I am trying to find information on the history of Teaching English as a Foreign Language (TEFL). Here are the pieces of information that I already have:
1. I am aware that TEFL has its roots in the British tradition of English language teaching. 
2. I know that there was a long period of time when Britain and other European countries had colonial empires, and that this led to a need for English language teaching. 

I think this is a good start, but I would like to know more about the early developments in the field. Can you please provide more information on this topic?[/INST]