RSA facts

Being an astronaut. Shuttleworth founded Thawte in 1995, which specialized in digital certificates and Internet security. His South African company flourished thanks to American ban on export of cryptography, which limited foreign operations of US cryptographic companies. Mark sold Thawte to VeriSign in December 1999, earning US$ 575 million (he aged 26 then). Later he became the second space tourist in the world, and founded Canonical.

Cape Town. The central area of Cape Town is called City Bowl. It is enclosed by near vertical cliffs of 1,000 m (3,300 ft) high Table Mountain, and Devil's Peak and Lion's Head on either side.

Bartolomeu Dias. During his expedition in 1487-1488, Bartolomeu Dias reached the tip of South Africa. Dias wanted to continue sailing to India, but he was forced to turn back when his crew refused to go further. After returning to Lisbon, Dias helped in the construction of the ships that were used by Vasco da Gama to eventually reach India ten years later.