The First Transcontinental Railroad was a 1,912-mile continuous railroad line constructed between 1863 and 1869 that connected the existing eastern U.S. rail network at Omaha, Nebraska/Council Bluffs, Iowa with the Pacific coast at the Oakland Long Wharf on San Francisco Bay.
<span>The primary purpose of the Immigration Act of 1924 was to "to reduce Asian and European immigration" since it limited the number of immigrants who could enter the United States per year from a specific country. </span>
Disease/Infection because things like penicillin weren't made until WW2
A lunar calendar is a calendar based upon monthly cycles of the Moon’s phases.
