Opium smoking later spread with Chinese immigrants and spawned many infamous opium dens in China towns around South and Southeast Asia and Europe. In the latter half of the 19th century, opium smoking became popular in the artistic community in Europe, especially Paris; artists' neighborhoods such as Montparnasse and Montmartre became virtual "opium capitals". While opium dens that catered primarily to emigrant Chinese continued to exist in China Towns around the world, the trend among the European artists largely abated after the outbreak of World War I.  The consumption of Opium abated in China during the Cultural Revolution in the 1960s and 1970s.
SmokefreeTXT is a key component of the . Department of Health and Human Services' efforts to develop mobile health programs and is one of the core features of the new Smokefree Teen initiative , an extension of NCI’s smoking cessation website, . Along with SmokefreeTXT, Smokefree Teen offers several social media pages to connect teens with cessation tools. In January 2012, Smokefree Teen will launch a free smartphone application, QuitSTART — an interactive quit guide for teens that delivers cessation and mood management tips, tracks cravings, and monitors quit attempts.