Who made the steam engine?

Watt is not the inventor of the steam engine. Before him, the steam engine appeared long ago, that is, the newcomen steam engine. 1698, Thomas Sally of England obtained the patent for inventing the pumping steam engine. Hope to help the landlord, thank you! I wonder who invented the first steam engine; At present, it is known that Papan, savery and newcomen in Britain initiated the British mining enterprises to manufacture and improve steam engines, among which savery made the first steam engine that can be used.