The Great Railroad Strike of 1877<span>, sometimes referred to as the </span>Great Upheaval<span>, began on July 14 in </span>Martinsburg, West Virginia<span>, </span>United States<span> after the </span>Baltimore & Ohio Railroad<span> (B&O) cut wages for the third time in a year. This strike finally ended some 45 days later, after it was put down by local and state militias, and federal troops. Because of economic problems and pressure on wages by the railroads, workers in numerous other cities, in New York, Pennsylvania and Maryland, into Illinois and Missouri, also went out on strike. </span>
