Angola's main sources

In the main sources, it contains History, Geography, and about the government of Angola. First thing in History,


The original inhabitants of Angola are thought to have been Khoisan speakers. After 1000, large numbers of Bantu speakers migrated to the region and became the dominant group. Angola derives its name from the Bantu kingdom of Ndongo, whose name for its king is ngola.
Explored by the Portuguese navigator Diego Cão in 1482, Angola became a link in trade with India and Southeast Asia. Later it was a major source of slaves for Portugal's New World colony of Brazil. Development of the interior began after the Berlin Conference in 1885 fixed the colony's borders, and British and Portuguese investment fostered mining, railways, and agriculture. 


Second thing in Geography,

Angola, more than three times the size of California, extends for more than 1,000 mi (1,609 km) along the South Atlantic in southwest Africa. The Democratic Republic of the Congo and the Republic of Congo are to the north and east, Zambia is to the east, and Namibia is to the south. A plateau averaging 6,000 ft (1,829 m) above sea level rises abruptly from the coastal lowlands. Nearly all the land is desert or savanna, with hardwood forests in the northeast.

Third thing in the Government,


Angola underwent a transition from a one-party socialist state to a nominally multiparty democracy in 1992. 

This is from the site http://www.infoplease.com/ipa/A0107280.html, if u want to read more you can go to the website as shown.