diff --git a/Theory b/Theory
index b3ba8c8..a342947 100644
--- a/Theory
+++ b/Theory
@@ -1,5 +1,6 @@
 %W%
-
+This file is in the public domain, so clarified as of
+2009-05-17 by Arthur David Olson.
 
 ----- Outline -----
 
@@ -9,7 +10,6 @@
 	Calendrical issues
 	Time and time zones on Mars
 
-
 ----- Time and date functions -----
 
 These time and date functions are upwards compatible with POSIX,