Yes, Swahili is used as a lingua franca in much of Eastern Africa and is an official language of 5 countries.
The British Empire was the largest Empire the world has ever known. What they did was snap-up all the undeveloped places and impose their culture on it. This included the English language.
Yes, for many parts of the world it is.
The Swahili language was developed in 1728 as a lingua franca between Arabs and African traders.
Bantu is not a single language but rather a large group of languages spoken in sub-Saharan Africa. However, some Bantu languages, such as Swahili, have been used as a lingua franca in certain regions due to their widespread use as a trade or administrative language.
Swahili and English
The predominant world lingua franca is English.
The lingua franca of India and Pakistan is Urdu/Hindi.
The first lingua franca was likely Akkadian, an ancient Semitic language used in the Mesopotamian region around 2500 BCE for trade, diplomacy, and communication between different cultures. It later evolved into Aramaic which became a major lingua franca in the Near East.
The lingua franca in South America is currently Spanish.
A lingua franca is a common language that is used for communication between people of different languages and cultures. Lingua Franca is not a country, nor it is it located in any specific countries.
Swahili is a Bantu language mixed with Arabic, Persian, German, English, French, and Portuguese.
The current lingua franca is English, but that may be set to change in the next few years.
The lingua franca for India and Pakistan is Hindi/Urdu--which are functionally the same language.
The Lingua Franca status is a descriptive term, and not a fixed status. Lingua Francas cannot be preserved. They change with the times.