As the European Parliament elections begin on Thursday, here are the key facts about the continent-wide poll and the European Union. When? Votes for the members of the European Parliament are being cast from June 6-9 across the European Union, but vary by country. The Dutch will kick things off on Thursday, June 6. This will be followed by Ireland on June 7, and then Latvia, Malta and Slovakia the next day. The Czech Republic and Italy vote across two days: June 7-8 and June 8-9 respectively. In the rest of the EU, elections will be held on Sunday, June 9. Who votes? There are almost 360 milli…