Display modified date on single.php

 * archival purposes.

 * 

 * Posts have an announcement-like character, and announcements are nothing else then messages,

 * and for messages, we generally care about the author, so we display it. 

 * and for messages, we generally care about the author, so we display it. We also display

 * the publication date and the date of the last change.

 * 

 * WordPress identifies this file by its name (which MUST be single.php).

 *

        </div>

        <footer>

            <div class="author"><?php the_author_meta('display_name'); ?></div>

            <div class="published date"><time><?php the_date(); ?></time></div>

            <div class="published date">Veröffentlicht: <time><?php the_date(); ?></time></div>

            <div class="modified date">Zuletzt geändert: <time><?php the_modified_date(); ?></time></div>

        </footer>

    </article>

</main>