The first steam "engine" was the Aeolipile (https://en.wikipedia.org/wiki/Aeolipile https://en.wikipedia.org/wiki/Aeolipile), but it was more a toy than a usefu

The first steam "engine" was the Aeolipile (https://en.wikipedia.org/wiki/Aeolipile https://en.wikipedia.org/wiki/Aeolipile), but it was more a toy than a useful tool. IIRC there was also a temple somewhere that used steam to open its doors as a cool trick to impress the masses.