Both wrote about the salient features of this disorder, including attentional problems, restlessness, early onset, and how it can affect schooling, without any of the moralism introduced by George Still and later authors.

In the late 1990s a number of cultural critics, notably Mark Dery in his 1995 essay Black to the Future, began to write about the features they saw as common in African-American science fiction, music and art.

My colleague Phil Fearnley published a post at the time to explain the strategic importance of the new homepage and I wrote about the key features in more detail.