Explain why later historians have viewed Frederick Jackson Turner's Frontier Thesis as "deeply flawed."

might be agreeing to participate ethically with other european nations in the slave trade

or notifying other european nations when taking possession   of african territories

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."

the main objectives of the progressive movement were eliminating problems caused by industrialization, urbanization, immigration, and political corruption.