Despite the 15th Amendment, African American men were kept from voting in certain states. In some states, poorer, less literate white voters feared being disenfranchised by the literacy and understanding tests. Some states thus introduced a loophole that allowed less literate whites to vote. This was called the clause.

travels along an axon. this triggers a wave of electrical activity that passes from the cell body along the length of the axon to the synapse

a plantation economy is an economy based on agricultural mass production, usually of a few commodity crops grown on large farms called plantations. plantation economies rely on the export of cash crops as a source of income.

i hope this : )