Demographics of Mozambique are dominant in the northern part of the country — the Sena and Shona (mostly Ndau) are prominent in the Zambezi valley, and the Shangaan (Tsonga) dominate in southern Mozambique. Other groups include Makonde, Yao, Swahili, Tonga, Chopi, and Nguni (including Zulu). The country is also home to a growing number of white residents, most with Portuguese ancestry. During colonial rule, European residents hailed from every Mozambican province, and at the time of independence the total population was estimated at around 360,000. Most vacated the region after independence in 1975, emigrating to Portugal as "retornados". There is also a larger
Chimoio Colonial War. After a military coup in Lisbon, the Carnation Revolution of 1974, the Portuguese authorities offered independence to its African territories, and Mozambique became an independent country. The change in name from Vila Pery to Chimoio took place on 12 June 1975, during the public rally of the first President of independent Mozambique - Samora Moisés Machel - on his journey from the Rovuma to the Maputo. One of the most visible marks of this period of fighting for independence is the Praça dos Heróis (Heroes’ Square). An impressive mural was painted depicting the various episodes in Mozambican history,