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diff --git a/ksokoban/History.h b/ksokoban/History.h
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+/*
+ *  ksokoban - a Sokoban game for KDE
+ *  Copyright (C) 1998  Anders Widell  <awl@hem.passagen.se>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#ifndef HISTORY_H
+#define HISTORY_H
+
+#include <qptrlist.h>
+#include <qstring.h>
+
+#include "Move.h"
+class MoveSequence;
+
+/**
+ * Maintains movement history
+ *
+ * @short   Maintains game movement history
+ * @author  Anders Widell <d95-awi@nada.kth.se>
+ * @version 0.1
+ * @see     PlayField
+ */
+
+class History {
+private:
+  QPtrList<Move> past_;
+  QPtrList<Move> future_;
+
+protected:
+
+public:
+  History();
+  /**
+   * Add a move to the history. Deletes all currently undone moves.
+   */
+  void add(Move *_m);
+  /**
+   * Clear the history and delete all Move objects stored in it.
+   */
+  void clear();
+
+  void save(QString &_str);
+  const char *load(LevelMap *map, const char *_str);
+  bool redo(LevelMap *map);
+  MoveSequence *deferRedo(LevelMap *map);
+  bool undo(LevelMap *map);
+  MoveSequence *deferUndo(LevelMap *map);
+};
+
+#endif  /* HISTORY_H */