What was the grimke sisters argument for equal rights for women based on ?

The Grimke sisters were prominent figures for women's rights and very passionate in their Abolition cause. Their arguments were based on the morality of man. Back then, it was morally and socially acceptable for a man to possess a slave and beat and mistreat him. The sisters grew to despise this norm after witnessing firsthand the bad effects it brings to the unpaid workers. 

in the 1800s, locomotives powered by steam made transportation faster and cheaper. the resulting rapid growth of railroads led to the connection of the atlantic and pacific railroad in oklahoma city in 1897.

in the last years of the century, the improvement of steam-based engines the expansion and growth of railroads. this growth increased when the companies started to build and expand, such as the atlantic and pacific railroad, which connected new mexico with california, and missouri with oklahoma. many of these new networks were built in oklahoma, and these changes transportation henceforward.