History of Factorial of natural numbers

+Title: Factorial of natural numbers+Definition: The factorial of a non-negative integer $n$ is defined as $n! := 1\cdot+  2\cdots n$.+Parameters:+  n:+    type: Z+    constraints: $n \geq 0$+Comments: {}+Formulas:+  formula-recursion: $n! = n\cdot (n-1)!$ for $n \geq 1$.+  formula-gamma: $n! = \Gamma(n+1)$ for $n \geq 0$.+Programs:+  program-sage:+    language: Sage+    code: numbers = {n.factorial() for n in [0..100]}+References: {}+Links:+  Wiki:+    title: 'Wikipedia: Factorial'+    url: https://en.wikipedia.org/wiki/Factorial+Similar tables: ''+Keywords: ''+Tags:+- sequence+- combinatorics+Data properties:+  type: ZZ+  complete: 'no'+Numbers:+  '0': '1'+  '1': '1'+  '2': '2'+  '3': '6'+  '4': '24'+  '5': '120'+  '6': '720'+  '7': '5040'+  '8': '40320'+  '9': '362880'+  '10': '3628800'+  '11': '39916800'+  '12': '479001600'+  '13': '6227020800'+  '14': '87178291200'+  '15': '1307674368000'+  '16': '20922789888000'+  '17': '355687428096000'+  '18': '6402373705728000'+  '19': 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