3This is the story of the first transcontinental railroad; the greatest, most daring engineering effort the country had yet seen. The time was the 1860s. Imagine the task. -David McCulloch Through a series of mergers, Union Pacific, grew into the most powerful railway in North America and has upheld that status to present day. Printed with soy-based inks on FSC certified paper, this 12 x 12 wall calendar features large monthly grids that offer ample room for jotting notes, along with six bonus months of July through December of 2021. Also includes moon phases (CST), standard U.S. and international holidays.