H.G. Wells' The Time Machine

The Time Machine is a science fiction novella by H. G. Wells, published in 1895 and later adapted into two feature films of the same name, as well as two television versions, and a large number of comic book adaptations. It indirectly inspired many more works of fiction in many media. This story is generally credited with the popularisation of the concept of time travel using a vehicle that allows an operator to travel purposefully and selectively. The term "time machine", coined by Wells, is now universally used to refer to such a vehicle. This work is an early example of the Dying Earth subgenre.

Herbert George "H.G." Wells (21 September 1866 – 13 August 1946) was an English author, now best known for his work in the science fiction genre. He was also a prolific writer in many other genres, including contemporary novels, history, politics and social commentary, even writing text books and rules for war games. Together with Jules Verne and Hugo Gernsback, Wells has been referred to as "The Father of Science Fiction".
-Wikipedia.com