On Saturday 29 September 1923, the Palestine Mandate became law and the British Empire reached what would prove to be its maximum territorial extent, covering a scarcely credible quarter of the world’s land mass, containing 460 million people. But the tide was beginning to turn. This book is a new way of looking at the British Empire. It immerses the reader in the contemporary moment, focusing on particular people and stories from that day, gleaned from newspapers, letters, diaries, official documents, magazines, films and novels: from a remote Pacific Island facing the removal of its entire soil, across Australia, Burma, India and Kenya to London and the West Indies.