What Progressive reform was the most
important for the Americans of this era?

Important changes introduced at the national levels included the imposition of an income tax with the Sixteenth Amendment, automatic election of Senators with the Seventeenth Amendment, Prohibition with the Eighteenth Amendment, election laws to stop graft and bribery, and women's suffrage.

b. 155 enlisted men and no officers

first industrial revolution - the first wave of the industrial revolution lasted from the late 1700s to the mid-1800s. it industrialized the manufacture of textiles and began the move of production from homes to factories. steam power and the cotton gin played an important role in this period.