When she was 21 , she made a broadcast in which she promised to devote the rest of her life to serving the people . Clark : Celebration will show how proud Brits are to have Elizabeth as their head of state . More than a million people on London streets as the queen tours the city , predicts Clark . Clark : The Queen is expected to be in Britain for two days and then fly back home again. The last Diamond Jubilee in 1897 celebrated the reign of Queen Victoria .
Clark : Celebration will show how proud Brits are to have Elizabeth as their head of state . More than a million people on London streets as the queen tours the city , predicts Clark . Clark : The Queen is expected to be in Britain for two days and then fly back home again. The last Diamond Jubilee in 1897 celebrated the reign of Queen Victoria .