A Colossal and Incomplete History of January

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Across
  1. 2. The symbol of this month's astrological sign
  2. 3. The American film pioneer known for Laurel and Hardy was born in New York (1892)
  3. 6. Scientist known for formulating a law concerning the volume and pressure of gases, born in Ireland (1627)
  4. 10. This Commonwealth was founded on January 1st (1901)
  5. 11. This island in New York Harbor opened (1892)
  6. 12. Surname of the seamstress credited with sewing the original American flag
  7. 14. Jackie Robinson was born in this city in Georgia (1919)
  8. 15. An icy, "polar" event that supports the Special Olympics
  9. 17. President who was inaugurated for an unprecedented 4th term (1945)
  10. 18. Branch of the U.S. military, created in 1915
  11. 20. This heavyweight boxing legend was born in Kentucky (1942)
Down
  1. 1. This master of poetry and suspense was born in Boston (1809)
  2. 2. The USS Nautilus, the world's first nuclear powered submarine, was launched in this Connecticut town (1954)
  3. 4. This place became part of the United States (1959)
  4. 5. This key player of the Hundred Years War was born in France (1412)
  5. 6. Benjamin Franklin was born in this city (1706)
  6. 7. Organization that worked with Martin Luther King, Jr. to organize the Montgomery bus boycott
  7. 8. World Day of ___, a feast day of the Catholic Church
  8. 9. The first governor of Massachusetts Bay Colony was born, ___ Winthrop (1588)
  9. 13. Wolfgang Amadeus Mozart was born here in 1756
  10. 16. The inventor of the Braille system was born, ___ Braille (1809)
  11. 19. Japanese soldier Shoichi Yokoi was found here after he had spent 28 years hiding, not knowing World War II had ended