ANSWERS

1. The Monroe Doctrine

2. John Brown. The raid was on Harpers Ferry.

3. Chicago. The team was led by Enrico Fermi (the reactor was Chicago Pile-1).

4. The United Arab Emirates

5. The Jarvik-7

6. Russia (2018) and Qatar (2022)

7. St Paul's Cathedral, by Sir Christopher Wren

8. Georges Seurat. The technique is pointillism, and the painting is "A Sunday Afternoon on the Island of La Grande Jatte".

9. Maria Callas

10. Britney Spears, "...Baby One More Time"