Xavier time line

By king x
  • 550

    In the pass

    In the pass
    Printing The invention of paper made another key
    development possible: printing. In about the 7th century,
    the Chinese invented a technique called woodblock
    printing.
  • 554

    In the pass

    In the pass
    The Development of the Mechanical Clock The Chinese developed the first mechanical clock in about the 8th
    century. The new clock was more accurate than earlier timekeeping devices, such as sundials and hourglasses. The
    Chinese devised a wheel that made one complete turn every 24 hours. Dripping water made the wheel turn.
  • 650

    In the pass

    In the pass
    Paper The Chinese invented the art of paper making by the second century C.E. The earliest Chinese paper was
    probably made from hemp and then the bark of the mulberry tree. Later, the Chinese used rags.
  • 650

    In the pass

    In the pass
    Steel Chinese first made steel, a very useful metal, before 200 B.C.E. Steel is made
    from iron, but it is less brittle than iron and easier to bend into different shapes.
  • 750

    In the pass

    In the pass
    Industry Some of the advances made by the Chinese led to new industries. In this section, you will learn about advances and
    innovations in the way the medieval Chinese made paper, print, tea, porcelain, and steel.
  • 850

    In the pass

    In the pass
    Improving Travel on Rivers, Lakes, Canals, and Bridges Within China, people often traveled by boat on rivers or
    across lakes. An innovation of a vessel called a paddle wheel boat made this type of travel must faster.
  • 854

    In the pass

    In the pass
    Military Technology During the Song and Mongol periods, the Chinese developed powerful weapons.
  • 950

    In the pass

    In the pass
    The Chinese developed the first
    compass as early as the 3rd century B.C.E. The first
    Chinese compasses were pieces of a magnetic mineral
    called lodestone. Earth itself is like a giant magnet with
    north and south poles. Because lodestone is magnetic, it is
    influenced by Earth’s magnetic poles. If you put a piece of
    lodestone on wood and float it in a bowl of water, the
    lodestone will turn until it points in a north-south direction.
  • 954

    In the pass

    In the pass
    The Development of Gunpowder The Chinese who first made gunpowder were alchemists, people who practiced a
    blend of science and magic known as alchemy. Alchemists experimented with mixtures of natural ingredients, trying
    to find a substance that might allow people to live forever.
  • 1050

    In the pass

    In the pass
    Porcelain is made by combining clay with the minerals quartz and feldspar. The mixture
    is baked in a kiln, or pottery oven, at very high temperatures. The resulting pottery is
    white, hard, and waterproof.