Elizabeth's many historic visits and meetings include a state visit to the Republic of Ireland and reciprocal visits to and from the Pope. She has seen major constitutional changes, such as devolution in the United Kingdom, Canadian patriation, and the decolonisation of Africa. She has also reigned through various wars and conflicts involving many of her realms. She is the world's oldest reigning monarch as well as Britain's longest-lived. In 2015, she surpassed the reign of her great-great-grandmother, Queen Victoria, to become the longest-reigning British head of state and the longest-reigning queen regnant in world history. COUNT 5
QSN1 Who is the world's oldest reigning monarch? ANS1 Elizabeth QSN2 Than which queen has Elizabeth ruled longer? ANS2 Queen Victoria QSN3 How is Victoria related to Elizabeth? ANS3 great-great-grandmother QSN4 In what year did Elizabeth pass Victoria's length of rule? ANS4 2015 QSN5 In the history of what is Elizabeth the longest reigning queen? ANS5 world history