Pirates!

Science fiction is a genre of fiction dealing with imaginary but more or less plausible content such as future settings, futuristic science and... technology, space travel, aliens, and paranormal abilities. Exploring the consequences of scientific innovations is one purpose of science fiction, making it a "literature of ideas". Science fiction is largely based on writing rationally about alternative possible worlds or futures. It is similar to, but differs from fantasy in that, within the context of the story, its imaginary elements are largely possible within scientifically established or scientifically postulated laws of nature . The settings for science fiction are often contrary to known reality, but most science fiction relies on a considerable degree of suspension of disbelief, which is facilitated in the reader's mind by potential scientific explanations or solutions to various fictional elements. Science fiction elements include: Science fiction is difficult to define, as it includes a wide range of subgenres and themes.
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Children's literature as such probably started in the 17th century; it is generally believed that before then books were written mainly for adults.... Additionally, most printed works were hard to come by due to their cost and were mostly available for purchase only by upper class society. Scholarship on children's literature includes professional organizations, dedicated publications and university courses. There is some debate on what constitutes children's literature. The United Nations Convention on the Rights of the Child defines a child as "a human being below the age of 18 years unless under the law applicable to the child, majority is attained earlier". Some books written for children, such as The Young Visiters by Daisy Ashford or the juvenilia of Jane Austen, written to amuse brothers and sisters, are also written by children. Anne Frank wrote a novel and many very short stories in addition to her diary . Barbara Newhall Follett wrote four books, beginning with a novel called The House Without Windows at the age of nine; when the manuscript was destroyed in a fire, she rewrote it from memory.
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Speculative fiction is an umbrella term encompassing the more fantastical fiction genres, specifically science fiction, fantasy, horror, supernatural... fiction, superhero fiction, utopian and dystopian fiction, apocalyptic and post-apocalyptic fiction, and alternate history in literature as well as related static, motion, and virtual arts. Speculative fiction as a category ranges from ancient works to both cutting edge, paradigm-changing and neotraditional works of the 21st century. Speculative fiction can be recognized in works whose authors' intentions or the social contexts of the versions of stories they portrayed is now known, since ancient Greek dramatists such as Euripides whose play Medea seems to have offended Athenian audiences when he fictionally speculated that shamaness Medea killed her own children instead of their being killed by other Corinthians after her departure, and whose Hippolytus, narratively introduced by Aphrodite, Goddess of Love in person, is suspected to have displeased his contemporary audiences because he portrayed Phaedra as too lusty.
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