history of Switzerland in the Roman era
... that the history of Switzerland in the Roman era includes about 300 years of peace and prosperity?
... that the <b id="mwHOQ"><a href="./Switzerland_in_the_Roman_era" id="mwHOU" rel="mw:WikiLink" title="Switzerland in the Roman era">history of Switzerland in the Roman era</a></b> includes about 300<span id="mwHOY" typeof="mw:Entity"> </span>years of peace and prosperity?