Arab–Byzantine wars: <a href="https://en.wikipedia.org/wiki/Maslama_ibn_Abd_al-Malik" id="mwGg" rel="mw:WikiLink" title="Maslama ibn Abd al-Malik">Maslama ibn Abd al-Malik</a> begins the <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Second_Arab_Siege_of_Constantinople" id="mwGw" rel="mw:WikiLink" title="Second Arab Siege of Constantinople">Second Arab Siege of Constantinople</a>, which will last for nearly a year.