diff --git a/etc/HISTORY b/etc/HISTORY
index 092e133b24f..04264256801 100644
--- a/etc/HISTORY
+++ b/etc/HISTORY
@@ -83,7 +83,9 @@ GNU Emacs 18.58 (1991-02-18)
 
 GNU Emacs 18.59 (1992-10-30)
 
-GNU Emacs 19.8  (1993-05-25)
+GNU Emacs 19.7  (1993-05-22)
+
+GNU Emacs 19.8  (1993-05-24)
 
 GNU Emacs 19.9  (1993-05-27)
 
@@ -109,17 +111,21 @@ GNU Emacs 19.19 (1993-08-14)
 
 GNU Emacs 19.20 (1993-11-11)
 
+GNU Emacs 19.21 (1993-11-16)
+
 GNU Emacs 19.22 (1993-11-27)
 
+GNU Emacs 19.23 (1994-05-16)
+
 GNU Emacs 19.24 (1994-05-23)
 
 GNU Emacs 19.25 (1994-05-30)
 
 GNU Emacs 19.26 (1994-09-07)
 
-GNU Emacs 19.28 (1994-11-01)
+GNU Emacs 19.28 (1994-10-06)
 
-GNU Emacs 19.29 (1995-06-21)
+GNU Emacs 19.29 (1995-06-19)
 
 GNU Emacs 19.30 (1995-11-24)
 
@@ -131,9 +137,9 @@ GNU Emacs 19.33 (1996-08-11)
 
 GNU Emacs 19.34 (1996-08-21)
 
-GNU Emacs 20.1 (1997-09-17)
+GNU Emacs 20.1 (1997-09-15)
 
-GNU Emacs 20.2 (1997-09-20)
+GNU Emacs 20.2 (1997-09-19)
 
 GNU Emacs 20.3 (1998-08-19)