The Persians were much less democratic and usually had local rulers that ruled with an iron fist while working for the main emperor. Had he beaten Alexander, chances are that he wouldn't allow religious and cultural freedoms in Alexander's territory the same way that Alexander allowed in conquered Persian territories.
<span>Now in 2017, factory work in the 1800's was considered to be very dangerous, one reason for the is the limitation of Health and Safety at work legislation, enforcing employers to take care of their staff. The Health and Safety at Work ect Act 1974 was long after this. Workers were consistently exposed to dangerous situations and chemicals (e.g. Scaffolding didn't have to to secure, Asbestos was not recognized as hazardous)</span>
All immigrants coming into the US had to stop at ether of those places to be allowed into the US