Yes, that is exactly what you should tell them. 1  If two clauses are connected with a coordinating conjunction, it's a compound sentence. 2  If two clauses are connected with a subordinating conjunction, it's a complex sentence.
Trains were first- 1784, but cars weren't invented until 1890.
1 1804 - First steam locomotive railway known as Penydarren or Pen-y-Darren locomotive was built by Richard Trevithick, used to haul iron from Merthyr Tydfil to Abercynon, Wales. 2  The first train carried a load of 10 tons of iron. 3  On one occasion it successfully tried hauling 25 tons. 1807 - First fare-paying, passenger railway service in the world was established on the Oystermouth Railway in Swansea, Wales. 2  Later this became known as the Swansea and Mumbles Railway although the railway was more affectionately known as The Mumbles Train (Welsh: Tren Bach I'r Mwmbwls).