diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000000000000000000000000000000000000..fcba1090cbcf25dcf7baabe28aee9ca5bfc8c4ae
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+++ b/LICENSE
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+Copyright (C)  2018  Orestis Malaspinas.
+
+
+ Permission is granted to copy, distribute and/or modify this document
+ under the terms of the GNU Free Documentation License, Version 1.3
+ or any later version published by the Free Software Foundation;
+ with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts.
+ A copy of the license can be downloaded from:
+ https://www.gnu.org/licenses/fdl.html.