Who was harriet tubman

Harriet Tubman was an escaped enslaved woman who became a “conductor” on the Underground Railroad, leading enslaved people to freedom before the Civil War, all while carrying a bounty on her head. But she was also a nurse, a Union spy and a women's suffrage supporter.

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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.