Queen Elizabeth II was born on April 21, 1926, and became Queen of the United Kingdom in 1952 at the age of 25. Her reign, lasting over 70 years, was the longest in British history. She guided the monarchy through major global changes, including decolonization, the Cold War, and the digital age. Known for her strong sense of duty and neutrality, she served as a symbol of stability and continuity. Queen Elizabeth II witnessed the leadership of fifteen British prime ministers and remained dedicated to public service until her death in 2022.