This is only the first of many shoes. Trump will be one of them, but more countries will leave the EU. The pendulum of the trend towards integration and socialism just stopped and started to turn back towards decentralization and capitalism.
When we look back at history, 1900 wasn't the beginning of the twentieth century. The twentieth century started around 1914 with WWI. The twenty-first century, technologically, started with the iPhone, Google, and now is really getting going with reusable rockets. But politically and economically, the twenty first century starts tonight with Brexit.
Frexit, Hexit, Spexit and Gexit!
Break up that monstrosity!
Only the foolish like the EU concept.
An intereting comment about the 19th cn coming to an end with WWI.
I take it you have read the great Carroll Quigley? That is certainly his conclusion as well.
As for tonight being the end of the 20th century . . . and presumably of the 2nd millennium . . . well . . . maybe if Trump is elected and there really is the dissolution of the alien, occupying civilization of globalism.