The vast expanses of post-apocalyptic Earths and undiscovered solar systems are all part of a deep and detailed writing system used to develop a realistic and engaging science fiction universe. World building is an important part of creating a fictional world in which the actions and events of novels take place. In The Word for World is Forest , The Time Machine 1960 film, and the 1927 film Metropolis world building is used as a tool to highlight important social issues. By creating fictional representations of real world class systems, places and events, science fiction can develop a world which is a fictional metaphor of topical issues. Successful and in-depth world building is one of the key steps to writing a fully developed and well-rounded science fiction novel. There are two all-encompassing general approaches a science fiction writer can take to world building: the top-down or bottom-up approach. The Time Machine released in 1960 tries to highlight social issues such as women’s oppression in a patriarchal society and major class differences by using the bottom-up technique. By creating a world which closely reflected the time period it was presented in, The Time Machine was able to accurately portray social issues of its time. Unlike Ursula Le Guin who used world building to create an entirely fictional universe to represent social issues, Time Machine uses a bottom-up approach to focus on the small part of the world that is needed for this story’s purposes. It focuses on one specific part of England throughout the time traveller’s adventures: less detail is given to the government, commerce and history of the world. This is, of course in part because it is set in the modern day in which it was released, where history is as the reader would know it to be. Instead world building is used in terms of creating new technology, and because of this new technology (the time machine) the time traveller adventures to new time periods in which world building is used to establish new social structures which highlight present day social issues. In "The Time Machine," the time traveller goes into the future, one of his first stops being in a period where world building establishes that nuclear weaponry is a danger: this reflects the time 1960 release date of the movie, where post-world war nuclear dangers were still plaguing the English country-side. Once the traveller hits his destination, the year 802,701, the writer uses world building features such as creating two new societies, developing their history, and displaying the Earth’s new flora and fauna. In this distant future, social issues such as the gaps between classes and oppression of women are demonstrated. Within the two future cultures, the Eloi and the Morlocks, the Eloi are the poor working class, the “sheep” that are controlled by the Morlocks, the underground race which exploit the Eloi for labor and food. This was meant to be representative of the current societal status in which the wealthy few controlled the masses by dictating what they wear, eat and do with their leisure time, just as the Morlocks do with the Eloi. The Eloi woman that the time traveller meets on his journey named Weena is the author’s