code: public List<HistoricalQuote> getHistory(Calendar from, Calendar to) throws IOException {
          return this.getHistory(from, to, Interval.MONTHLY);
      }
docs: Requests the historical quotes for this stock with the following characteristics.
  <ul>
  <li> from: specified value
  <li> to: specified value
  <li> interval: MONTHLY (default)
  </ul>
  
  @param from          start date of the historical data
  @param to            end date of the historical data
  @return              a list of historical quotes from this stock
  @throws java.io.IOException when there's a connection problem
  @see                 #getHistory()