Comment: Cities that never sleep Published on: 14 September 2018 Writing for The Conversation, Dr Robert Shaw discusses how the modern world blurs the boundaries between night and day. , , Night has always been a difficult realm for humans: we鈥檝e had to learn to cope with the cold and the dark to thrive in it. Since the industrial revolution we鈥檝e found ways to adapt our homes and cities to operate during the night. But as our conquest of the dark continues, the border between night and day is becoming increasingly blurry. In 1988, sociologist Murray Melbin described the night as . As early American settlers expanded westwards across the continent, so too, he argued, was society beginning to expand into the night. Melbin鈥檚 metaphor treated the night as a separate social entity and he argued that, just like geographical frontiers, it was inhabited by 鈥減ioneers鈥: individuals and groups seeking work or leisure opportunities outside mainstream society, whether through desire, or necessity. Taking back the night For example, the night time tends to have a of black and minority ethnic workers than the day. Likewise, the LGBTQ community in the mid-20th century 鈥 and still today, in some contexts 鈥 found that, with society sleeping, that acted as community centres as well as places of leisure. Political action has often found a home at night, too: from evening meetings of activists in community centres or the back rooms of pubs, to more radical political activism. , Sylvia Pankhurst for example described the suffragette arson campaign: 鈥淲omen, most of them very young, toiled through the night across unfamiliar country, carrying heavy cases of petrol and paraffine鈥. Despite this, the night is not necessarily a welcoming space for all. The dark hours can be threatening for oppressed and marginalised groups and movements. Those sleeping rough , fearing for their personal safety. And movements such as have had to campaign hard for womens鈥 right to use the city at night time to be taken seriously.