Zulu

In the phonetic alphabet, Zulu represents the letter Z. The Zulu Kingdom was a monarchy in Southern Africa that extended along the coast of the Indian Ocean from the Tugela River in the South to Pongola River in the north. The small kingdom grew to dominate much of Southern Africa until it came into conflict with the British Empire in the 1870s during the Anglo-Zulu War where it was ultimately defeated.

Today the Zulu people are the largest ethnic group in South Africa, with an estimated 10–11 million people living mainly in the province of KwaZulu-Natal. Their language, Zulu, is a Bantu language. Under apartheid, Zulu people were classed as third-class citizens and suffered from state-sanctioned discrimination. Today they are the most numerous ethnic group in South Africa, and now have equal rights along with all other citizens.

source: http://www.culture-cultures.com/culture-in-south-africa/south-africa-culture-tradition.asp