One factor that led to the establishment of organized communities was simply the size of the migration movements, especially from the South, that required "grids" to be formed in many cities in the North.
World War ll i believe because it hid the soldiers
Initially the Powhatan were only weary of the Colonists but as times grew harder for Colonists the english settlers began to raid the Powhatan food supplies and this created tensions between the groups. This led to many wars and casualties on both ends eventually ending when the Powhatan chief accepted peace with the English and his daughter (Pocahontas) was married to John Rolfe. (She died 3 years later of disease)
SITA will most likely be struck down under the taxing and spending clause. Taxing and spending clause is the clause in Article 1, section 8, clause 1 of the US constitution grants the federal government the power of taxation. It authorizes the congress to collect taxes for the purposes of paying debts of the state and provide the common defense and welfare of the united state.