"What is a train?" and other questions are discussed as we try to determine what really was the first train in history.

Sources:

https://en.wikipedia.org/wiki/Stockton_and_Darlington_Railway

https://en.wikipedia.org/wiki/George_Stephenson

https://en.wikipedia.org/wiki/History_of_rail_transport

https://en.wikipedia.org/wiki/Locomotion_No._1

https://www.britannica.com/topic/Stockton-and-Darlington-Railway

http://spartacus-educational.com/RAstockton.htm

http://www.engineering-timelines.com/scripts/engineeringItem.asp?id=1136

https://www.ice.org.uk/what-is-civil-engineering/what-do-civil-engineers-do/stockton-and-darlington-railway

https://en.wikipedia.org/wiki/Liverpool_and_Manchester_Railway

http://beforebefore.net/scima200/media/wolfgang-schivelbusch-railroad-space-and-railroad-time-1.pdf (really cool article)