Days of Hot Weather in Naples. Highs in the 80s Fahrenheit are common every month of the year here. And nearly every summer day at Naples reaches into the 90s F. But the thermometer normally stops short of 100 Â°F (38 Â°C). Days per month in Naples of at least 70, 80 or 90 Â°F.
The first steam locomotive was built by Richard Trevithick; it first ran on 21 February 1804, although it was some years before steam locomotive design became economically practical. The first commercial use of a steam locomotive was Salamanca on the narrow gauge Middleton Railway in Leeds in 1812.
Making the world better, one answer at a time. The first commercial diesel locomotive was built, by GE, in 1918 for the Jay Street Connecting Railroad in New York.Although not particularly successful, it sparked further interest that led to the construction of a diesel locomotive demonstrator in 1924. George Stephenson (9 June 1781 - 12 August 1848) a British civil engineer and mechanical engineer who built the first public railway line in the world to use steam locomotives and is known as the Father of Railways   Trevithick invented the first train, Stephenson the first public railway line.