The Time Machine is a science fiction novella by H. G. Wells, published in 1895 and written as a frame narrative. The work is generally credited with the popularization of the concept of time travel by using a vehicle or device to travel purposely and selectively forward or backward through time. The term ""time machine"", coined by Wells, is now almost universally used to refer to such a vehicle or device. The story reflects Wells's own socialist political views, his view on life and abundance, and the contemporary angst about industrial relations. Based on Wells's personal experiences and childhood, the working class literally spent a lot of their time underground. His own family would spend most of their time in a dark basement kitchen when not being occupied in their father's shop. This work is an early example of the Dying Earth subgenre. The portion of the novella that sees the Time Traveller in a distant future where the sun is huge and red also places The Time Machine within the realm of eschatology, i.e. the study of the end times, the end of the world, and the ultimate destiny of humankind.