They say that English was first spoken by the Anglo-Frisian. They had dialects that they brought to Britain. Before this language was established, people used different Celtic languages depending on their areas. The first form of English that was created is considered to be the Anglo-Saxon. There were further changes that were made to this until this language started to become more established and recognized.
People consider English to be one of the trickiest languages to learn. The tenses are sometimes enough in order to confuse people. Its history is interesting to a lot of people who would like to understand English and would like to learn how to speak English better.