diff --git a/dat/history b/dat/history
index 364358396..924adbd06 100644
--- a/dat/history
+++ b/dat/history
@@ -17,9 +17,9 @@ R. Black ported PC HACK 3.51 to Lattice(tm) C and the Atari 520/1040ST,
 producing ST Hack 1.03.
 
 Mike Stephenson merged these various versions back together, incorporating
-many of the added features, and produced NetHack version 1.4.  He then
-coordinated a cast of thousands in enhancing and debugging NetHack 1.4 and
-released NetHack versions 2.2 and 2.3.
+many of the added features, and produced NetHack version 1.4 in 1987.  He
+then coordinated a cast of thousands in enhancing and debugging NetHack 1.4
+and released NetHack versions 2.2 and 2.3.
  
 Later, Mike coordinated a major rewrite of the game, heading a team which
 included Ken Arromdee, Jean-Christophe Collet, Steve Creps, Eric Hendrickson,