Inventors of the stone age -- The first tools -- The fire makers -- New ways of moving -- Harvesting the earth -- Under attack! -- From stone to metal -- Boats and sails -- Wonderful clay -- Sailing into the unknown -- Weapons of war -- Measuring time -- Harvesting nature's energy -- Marks on a page -- Making things bigger -- Making music -- Keeping in touch -- Taking to the skies -- Keeping a record -- Round the house -- From earth into space.