Thats right, today is the 144th anniversary of the Golden Spike being driven to commemorate the completion of the first Transcontinental Railroad in the US at Promentory Pointe, UT.
http://www.nps.gov/gosp/index.htm
I remember visiting the site when I was a kid. They had just finished building 119 and Jupiter. I still have the VHS talking about the building of both locomotives.