Current Events Discussion: Catalonia

Source: Financial Times explains history of Spain, including Catalonia

See also NBC News Long Story Short 

Source: BBC on Catalonia vote: Nationalists win elections?

https://www.marketplace.org/2017/10/02/world/catalan-voted-separate-spain-now-what

https://www.nytimes.com/2017/10/03/opinion/catalonia-spain-referendum.html

What would Europe look like if every separatist movement was successful?