I’m doing some research on steam engines for my work on the trains of Aerth when I run across this article at Wikipedia. Turns out that Heron of Alexandria really didn’t invent the steam engine as we know it today, but rather a rudimentary prelude there to. No, the first piston engine was invented by Thomas Newcomen of Britain in 1712. The first steam turbine was in 1551 was a more modern version in 1884.
Now I get to convert this all to Aerth, then write it up and incorporate it into The Trains of Aerth. Should interest the Mythus group on Facebook.