This document provides a biography of Queen Elizabeth II in 3 paragraphs. It notes that she became Queen at age 27 in 1952 after the death of her father King George VI. Over her 66-year reign, she has served as a symbol of stability for the United Kingdom through many historical events and changes, including decolonization, the Cold War, and the UK's membership in the EU. The biography highlights some of the major events and tours during her reign, her dedication to duty and public service, and her role as a symbolic unifying figurehead for the people of the UK and Commonwealth nations.