Complex sentence: The Men who Built the Transcontinental Railroad 1863-1869, which had been documented in a 25-page paper released on December 19,2000, by three experienced Western railroad researchers who specialize in Pacific Railroad history.
Split into simpler sentences: The Men who Built the Transcontinental Railroad 1863-1869 "". The source of that article was a 25-page paper released on December 19,2000 by three experience Western railroad researchers who specialize in Pacific Railroad history.