Isabel II, also known as Queen Elizabeth II, was the queen of the United Kingdom and other Commonwealth realms from February 6, 1952, until her death on September 8, 2022. She was born on April 21, 1926, in London and became queen at the age of 25 after the death of her father, King George VI. Her reign lasted over 70 years, making her the longest-serving monarch in British history. During her time on the throne, Isabel II witnessed significant changes in society, politics, and technology. She played a crucial role in modernizing the monarchy and was known for her dedication to public service. Her reign included important events such as the decolonization of Africa and the rise of the European Union.