I've just discovered Night Haunts, an ongoing, online, nocturnal journal, by Sukhdev Sandhu (who I'll be interviewing here on RSB very soon) and Artangel. In Whatever happened to the London night, Sukhdev ponders:
There was a time, well over a century ago now, when it was considered one of the finest Victorian inventions. Before then, the onset of darkness had spelled an end to the day. It represented its outer limits, its polar extremes. The night was seen as lawless, foreign territory teeming with rogues and banditos who took advantage of what Shakespeare called its 'vast, sin-concealing chaos' to revel in an orgy of depravity and pestilence. It snuffed out the civility and social etiquettes of daytime and brought back trace memories of an older London dense with eldritch forestry.