According to John Louis O'Sullivan, what is holding America back from its destiny?

Which of the following statements is true about the treaty of versailles ?

Is this statement true or false? before 1850, workers in american mines, mills, and factories were poorly paid, but their safety on the job was always protected by strict laws.

Read the following passage. the early mill girls were of different ages. some were not over ten years old; a few were in middle life, but the majority were between the ages of sixteen and twenty-five. the very young girls were called "doffers." they "doffed," or took off, the full bobbins from the spinning frames, and replaced them with empty ones. based on the passage, early mill girls were mostly young. were mostly middle aged. were of a variety of ages. were mostly children.