Interesting little article.
https://qz.com/1193455/the-speed-of-europes-18th-century-sailing-ships-is-revamping-historians-view-of-the-industrial-revolution/ (https://qz.com/1193455/the-speed-of-europes-18th-century-sailing-ships-is-revamping-historians-view-of-the-industrial-revolution/)