One of the biggest inventions in the world is the steam engine.The first steam engine, invented by Thomas Savery in 1689, was a form of pump, used to remove water from mines. In 1712, Thomas Newcomen invented a steam-operated pump with pistons. From the 1760s, James Watt improved on Newcomen's ideas and produced more efficient steam engines. The invention of the steam engine created many changes and additions to the technology of the time, including steam powered locomotives