by David London The beautiful and delicate porcelains of China and Japan were taken to Europe after the opening of trade with Asia. They created such an intense fashion for fine porcelain with the ruling classes that it was called a ³china mania.² Kings vied with each other in attempts to discover the secret of true porcelain jealously guarded by the Asians. The nobility were no longer satisfied with vessels of opaque earthenware, and even gold and silver services gave way to the more highly prized porcelains.