diff --git a/CHANGES.rst b/CHANGES.rst
index 299b082299..ed187accd0 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -11,6 +11,11 @@ https://github.com/zopefoundation/Zope/blob/4.0a6/CHANGES.rst
 4.0b6 (unreleased)
 ------------------
 
+Breaking changes
+++++++++++++++++
+
+- Remove the ``OFS.History`` module which contained only BBB code since 4.0a2.
+
 New features
 ++++++++++++
 
diff --git a/src/OFS/History.py b/src/OFS/History.py
deleted file mode 100644
index e2f6abbdda..0000000000
--- a/src/OFS/History.py
+++ /dev/null
@@ -1,22 +0,0 @@
-##############################################################################
-#
-# Copyright (c) 2002 Zope Foundation and Contributors.
-#
-# This software is subject to the provisions of the Zope Public License,
-# Version 2.1 (ZPL).  A copy of the ZPL should accompany this distribution.
-# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
-# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
-# FOR A PARTICULAR PURPOSE
-#
-##############################################################################
-# BBB Zope 5.0
-
-
-class Historical(object):
-
-    manage_options = tuple()
-
-
-def html_diff(s1, s2):
-    raise NotImplementedError()