really, Period 6?!
Of course building a transcontinental railroad was no easy task. Workers had to dig 19 tunnels, chiseling away at one foot a day, until explosives quickened the rate to 2 feet. After 6 years of construction and 1776 miles of track, a golden spike was pounded in to link east coast to west in 1869.
PERIOD 6 ARTIFACTS (aka, primary sources)