The following article written by Cornelius Hirsch for Politico summarizes the reopening history of various European countries. It also tracks which countries require mandatory use of masks, as well as the length of each country’s lockdowns.
For most European countries, face masks are no longer required outdoors, and the longest lockdown was that of the UK which lasted 83 days.
Editor’s Note: The following article is a testament to the reality that it is safe to re-open countries even with some coronavirus cases still being recorded. Some of the countries mentioned here have reopened as early as April, and no second surge of infections have been recorded [In fact, a second surge may never happen at all, read There is no evidence to support second wave of the coronavirus].