LONDON—The U.K. formally quit the European Union late Friday, closing the chapter on nearly half a century of integration with its European neighbors as it begins to chart a new and uncertain course in the world. The day, which follows nearly four years of nearly unprecedented political chaos triggered by the 2016 Brexit referendum, marks a watershed moment for both the U.K. and the EU.

Source: Wall Street Journal January 31, 2020 13:41 UTC