The Baltimore railroad strike of 1877 involved several days of work stoppage and violence in Baltimore, Maryland, in 1877. It formed a part of the Great Railroad Strike of 1877, during which widespread civil unrest spread nationwide following the global depression and economic downturns of the mid-1870s. Strikes broke out along the Baltimore and Ohio Railroad (B&O) on July 16, the same day that 10 percent wage reductions were scheduled.