Other than being Mother's Day, it is also Golden Spike Day! Back in 1869, the first transcontinental railroad was completed here in good ol' Utah. The railroad was built from the ends to the center and they met up in Promontory, Utah. Fun Fact - the railroad was only used for about 35 years before a better, faster route was discovered and erected. Since it fell out of favor and use, no major population has called Promontory their home.
I went there a few years ago and I remember it being very dusty and hot. We saw the golden spike, which was the ceremonial final spike to be driven in to the tracks. The above picture is from the last day, 140 years ago. Three cheers for history!