The 19th c., the increase in trade and activities in opposition to slave trade brought English to the entire West African coast, and several English-based pidgins and creoles developed. English is still taught and used, being an official language there. British varieties of English develop in 6 particular countries, which have English as an official language: Sierra Leone, Ghana, The Gambia, Nigeria, Cameroon and Liberia.
East Africa
Visited by English in the 16th century, it was not explored until 1850s. The Imperial East Africa Company was founded in 1888, and a series of colonial protectorates was established. There are 6 main states with a history of British rule that gave English official status when they gained their independence: Kenya, Tanzania, Uganda, Malawi, Zambia and Zimbabwe.
South-East India and South Pacific
There is a mixture of English and Australian English, and American influence increased in the 1940s. The British influence there began with Captain James Cook and English become rapidly an influential language in the British territories of South Pacific. And because of the very different cultural circumstances in different parts of the region, no one South Asian English variety has emerged
b) Industrial Revolution As we can imagine, British colonialism was the first step of the expansion of English all over the world. However it is also very important the Industrial Revolution in terms of the spread of English. Britain was the leader of the Industrial Revolution,
and large-scale manufacturing and production machinery were just some of the major technological advancements being pioneered there. Countries which needed this new industrial knowledge could access it via the medium of English, something which made powerful again the language internationally. And the development of technology was side by side with the spread of English. For instance, English was the language in which the system of telegraph was developed, and English became the international language of all telegraph operators.