code: public static EraPreference abUrbeConditaBetween(
          PlainDate start,
          PlainDate end
      ) {
  
          return new EraPreference(HistoricEra.AB_URBE_CONDITA, start, end);
  
      }
docs: /*[deutsch]
  <p>Legt fest, da&szlig; die &Auml;ra Ab Urbe Condita innerhalb der angegebenen Datumsspanne bevorzugt wird. </p>
  
  @param   start       first date when the era A.U.C. shall be used (inclusive)
  @param   end         last date when the era A.U.C. shall be used (inclusive)
  @return  EraPreference
  @see     HistoricEra#AB_URBE_CONDITA
  @since   3.14/4.11