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Plankalkül was developed (https://history-computer.com/ModernComputer/Software/Plankalkul.html)
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Fortran is developed (https://www.obliquity.com/computer/fortran/history.html)
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Lisp is developed (http://jmc.stanford.edu/articles/lisp.html)
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MATH-MATIC is developed (https://www.revolvy.com/page/MATH%252DMATIC)
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RPG is developed (http://www.programmers.io/rpg-programming-language/)
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BASIC is developed (http://time.com/69316/basic/)
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LOGO is developed (http://el.media.mit.edu/logo-foundation/what_is_logo/history.html)
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B Developed (http://progopedia.com/language/b/)
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PASCAL is developed (https://www.britannica.com/technology/Pascal-computer-language)
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SQL is developed (https://www.businessnewsdaily.com/5804-what-is-sql.html)
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ML is developed (https://www.whoishostingthis.com/resources/ml/)
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C is developed (https://www.tutorialspoint.com/cprogramming/c_overview.htm)
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Python is develped (http://www.trytoprogram.com/python-programming/history-of-python/)
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Visual Basic is developed (https://www.cleverism.com/skills-and-tools/visual-basic/)
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PHP is developed (http://php.net/manual/en/history.php.php)
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Delphi is developed (http://www.delphibasics.co.uk/Article.asp?Name=DelphiHistory)
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Java is developed (https://www.obliquity.com/computer/fortran/history.html)
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JavaScript is developed (https://medium.com/@benastontweet/lesson-1a-the-history-of-javascript-8c1ce3bffb17)
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C++ is developed (http://www.cplusplus.com/info/history/)