ANSWERS

1. Sputnik 1. It sent back a simple radio "beep" signal.

2. That night the Gregorian calendar was introduced in Spain, and ten days were skipped (see your 15 October round).

3. The Orient Express. Its eastern destination was Constantinople (Istanbul).

4. Newport

5. Mount Rushmore, by Gutzon Borglum. The presidents are Washington, Jefferson, Theodore Roosevelt and Lincoln.

6. He was the first pope to visit the United States (and the Americas).

7. D Lesotho

8. Janis Joplin

9. SpaceShipOne won the Ansari X Prize.

10. World Animal Day

11. Buster Keaton, "The General"

12. Charlton Heston

13. Rutherford B. Hayes

14. Jean-François Millet, "The Gleaners"

15. B Susan Sarandon

16. Alicia Silverstone

17. Anne Rice

18. Rembrandt (Rembrandt van Rijn)

19. Max Planck. The society is the Max Planck Society.

20. A Belgium