After slavery was abolished, rather than pay higher wages to freedmen (former slaves), wealthy landowners and investors claimed that their "labor shortage" could be solved by bringing in destitute and hungry .

dirty, contaminated water

contaminated food,

chlostrophobic living spaces,

mice infestation,

etc,

explanation: d

2686-2181 bce-- "egyptian civilization developed along the nile river in large part because the river’s annual flooding ensured reliable, rich soil for growing crops."

1069-664 bce-- "ancient egyptians developed wide-reaching trade networks along the nile, in the red sea, and in the near east."