The infamous "grandfather clauses" of the late 19th and early 20th centuries stated that

The infamous "grandfather clauses" of the late 19th and early 20th centuries stated that people who exerted their right to vote prior to 1866, as their descendants, were exempt of certain requerements for voting such as the owning of property, payment of poll taxes and literacy tests.

Explanation:

These clauses existed in many Southern states and were a direct attempt to prevent African-Americans from voting. They were outlawed by the Supreme Court in 1915 that decided they were against the 15th Amendment. Despite this decision African-Americans in some Southern states were able to vote only after the Voting Rights Act of 1965.

leonardo was the supreme renaissance painter, scientist, inventor, and polymath. da vinci is widely regarded as one of the greatest minds the world has ever produced. he was interested in everything from music to art and science. da vinci was an immense creative force at the start of the renaissance period. amongst his many works was the immortal painting – the mona lisa.

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answer; /// the correct answer is evidence of the olmec civilization has been found in southern american in a hot steamy forest, archaeologists have found earthen artifacts at several sites that were evidence of the olmec civilization. these   artifacts were mounds,courtyards and pyramids build of stones, also on top of the mounds were many monuments made of stone, some of these stone structures are very large, they weigh as much as 44