Apple has dedicated the front page of its US website to the memory of US cultural heroine, Rosa Parks.

Parks is the woman who in 1955 refused to give up her seat on a bus to a white man, putting wheels in motion that helped give rise to the US civil rights movement.

The action led to Parks' arrest, a major boycott of the local bus system (the Montgomery bus riots), and, eventually, the Supreme Court's ruling in November 1956 that called racial segregation on transport "unconstitutional".

In 1995, Parks said: "We still have a long way to go in improving the race relations in this country."

"Parks almost single-handedly set in motion a veritable revolution in the southern United States, a revolution that would eventually secure equal treatment under the law for all black Americans," Black historians say.

She was born in 1913 and died in 2005.