Estimates for this country explicitly take into account the effects of excess mortality due to AIDS; this can result in lower life expectancy, higher infant mortality and death rates, lower population and growth rates, and changes in the distribution of population by age and sex than would otherwise be expected.
Between the first and fifth centuries AD, Bantu-speaking peoples migrated to present-day Mozambique from farther north and west. Northern Mozambique lies within the monsoon trade winds of the Indian Ocean. Between the 7th and 11th centuries, a series of Swahili port towns developed here, which contributed to the development of a distinct Swahili culture and language. In the late medieval period, these towns were frequented by traders from Somalia, Ethiopia, Egypt, Arabia, Persia, and India.
Mozambique is endowed with rich and extensive natural resources. The country's economy is based largely on agriculture, but industry is growing, mainly food and beverages, chemical manufacturing and aluminium and petroleum production. The tourism sector is also expanding. South Africa is Mozambique's main trading partner and source of foreign direct investment, while Belgium, Brazil, Portugal and Spain are also among the country's most important economic partners. Since 2001, Mozambique's annual average GDP growth has been among the world's highest. However, the country is still one of the poorest and most underdeveloped countries in the world, ranking low in GDP per capita, human development, measures of inequality and average life expectancy.
The country was named Moçambique by the Portuguese after the Island of Mozambique, derived from Mussa Bin Bique or Musa Al Big or Mossa Al Bique or Mussa Ben Mbiki or Mussa Ibn Malik, an Arab trader who first visited the island and later lived there. The island-town was the capital of the Portuguese colony until 1898, when it was moved south to Lourenço Marques (now Maputo).