Man's name crossword

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Across
  1. 3. A famous English playwright and poet.
  2. 5. The first African American president of the United States.
  3. 7. A legendary basketball player.
  4. 9. A famous Italian artist and inventor.
  5. 10. A famous theoretical physicist and cosmologist.
Down
  1. 1. A biblical king who defeated Goliath.
  2. 2. The King of Rock and Roll.
  3. 4. A legendary boxer known as "The Greatest."
  4. 6. Renowned physicist known for his theory of relativity.
  5. 8. An anti-apartheid revolutionary and former South African president.