The gondola has been a part of Venice since the 11th century. ＿＿（36）＿＿ its slim shape and flat underside, the boat is perfectly adapted to maneuvering in Venice’s narrow, shallow canals. The front of the boat has a slight leftward curse to prevent it ＿＿（37）＿＿ around in circles, as the gondolier, or operator of the boat, uses the oar only on the right side. In 1562, it was decided that all gondolas should be black to stop people from making an ＿＿（38）＿＿ show of their wealth. Today, gondola rides are expensive, and are usually taken only by tourists.