Explaining Brexit in 21 tweets

The UK has voted to leave the European Union, a decision that has sent shockwaves through the world. In a final tally, the leave campaign won 51.9 percent of the vote, with a turnout of 71.8 percent — the highest in a UK election since 1992.
In political and financial terms, the fallout has been sudden and cataclysmic. David Cameron, the leader of the UK's ruling Conservative party, resigned this morning (although he'll stay in power until later this year), while the value of the pound has