The name was coined by Christopher Lloyd (world history author), creator of The What on Earth? Wallbook which claims to be the first ever attempt to illustrate the entire history of everything from the Big Bang to the present day on a single timeline. 
The What on Earth? Wallbook is notable for its use of a logarithmic timescale. At the beginning of the timeline 1 cm represents the passage of 1 billion years but by the end of the timeline the same space accounts for just 5 years. A total of 12 changes of scale accounts for how the whole of the past can be graphically represented on a single piece of paper.
The Wallbook’s 1,000 pictures and captions are arranged into twelve streams of colour which provide the backdrops along which the major events of natural and human history unfold. Space, Earth, Sky, Sea, Land and Humanity account for the story of evolution while Asia, the Middle East, Europe, the Americas, Africa and Australasia convey the rise and fall of human civilisations.
At the top of the timeline is a series of globes that start by showing the movement of the world’s continental plates but later chart the rise and fall of major human empires.
Since the launch of the What on Earth? Wallbook the word wallbook has been defined in Macmillan's Open Dictionary as a new noun meaning: a large printed book which can be mounted on a wall