During the civil war, harriet tubman the union cause by

during the civil  war Harriet Tubman by  being a spy hope this helped

it increase by 12% a year from 1812-1820

to reform the distraught soviet union, the democratization of the communist party was promoted through party secretary mikhail gorbachev's policies of “perestroika” and “glasnost.” perestroika refers to the reconstruction of the political and economic system established by the communist party.