diff --git a/README.md b/README.md
index 4e4cb8b..cf5959e 100644
--- a/README.md
+++ b/README.md
@@ -56,4 +56,5 @@ $ sudo dump1090 --net --freq 868000000
 4. "*Ghost in the Air(Traffic): On insecurity of ADS-B protocol and practical attacks on ADS-B devices*", **Andrei Costin and Aurelien Francillon**, 2015
 5. "*ADS-B Decoding Guide*", **Junzi Sun**, 2017
 
-
+# History
+This is a fork orginally from https://github.com/lyusupov/ADSB-Out in September 2017.