On June 23, 2016 (May 19, 2016 in the lunar calendar), the United Kingdom voted to leave the European Union. On June 23, 2016, the United Kingdom held a referendum on whether to retain its membership in the European Union, commonly known as the "Brexit referendum". The referendum only had one question: "Should the United Kingdom remain in the European Union or should it leave the European Union?" The results of the vote to leave the European Union and Remain were 51.9% and 48.1% respectively. The Brexiteers won by a narrow margin. After that, the United Kingdom began the process of leaving the European Union. In July, former Prime Minister David Cameron resigned and Theresa May took over. The picture shows the tendency of Brexit and Remain in the referendum across the United Kingdom. The yellow area is the majority of Remainers; the blue area is the majority of Leavers. Scotland and Greater London are both regions with a clear preference for Remain. After the referendum results were announced, Scottish public opinion returned to the topic of independence.