Silicon Valley is geographically based too, and its center of gravity has shifted from Santa Clara County and the Valley proper, where the great first and second generation tech companies started, up through Palo Alto and Menlo Park in San Mateo County, and more recently, towards San Francisco proper.
Prior to the Season 3 finale your appearances were confined to flashbacks (on account of David being dead and all).   Brazil, with a population of almost 200 million is the most populated country in South America.
Mbabane is the largest city of Swaziland. It is located on the Mbabane River and has an estimated population of 95,000. It is named after a Chief, Mbabane Kunene, who lived in this region when the British arrived.babane, the largest city of Swaziland with estimated population of about hundred thousand, is the Administrative capital of the country. The traditional royal capital, however, is Lobamba.