By the mid-1800's the world was involved in a global clipper race as nations competed with each other to claim the fastest ships. England and America were the leading rivals. Each year the tall ships would race from China to the Tea Exchange in London to bring in the first tea for auction. Though beginning half way around the world, the mastery of the crews was such that the great ships often raced up the Thames separated by only by minutes. But by 1871 the newer steamships began to replace these great ships.