The Progressive Era 16-19 Amendments. This amendment protects the US citizens the right to vote on the basis of gender.
Explanation:
Significant changes enacted at the national levels included the imposition of an income tax with the Sixteenth Amendment, direct election of Senators with the Seventeenth Amendment, Prohibition with the Eighteenth Amendment, election reforms to stop corruption and fraud.
The Nile was most important to the Egyptians because it delivered water and nutrients for the crops that were grown along the beds of the river itself.