Visual history of the world's darkest days The other title:Visual history of the world's darkest days Visual history of the world The history of the world in 366 days. 蓝鲸志:a natural history of the world‘s largest animal Visual history of the twentieth century On this day: a history of the world in 366 days Visible history of the world On this day:the history of the world in 366 days. Visual biographies of the world's greatest designers