WHO/WHAT/WHEN/WHERE

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Across
  1. 2. THE CENTURY IN WHICH THIS INVENTION WAS DISCOVERED
  2. 4. THE INVENTORS
  3. 5. THE COUNTRY IN WHICH THIS INVENTION WAS DISCOVERED
Down
  1. 1. THE INVENTION
  2. 2. THE NUMER OF BIRDS ON THE CARD
  3. 3. THE NUMBER OF SECONDS THAT THE FIRST FLIGHT LASTED