Across
- 5. the first underground train system
- 6. the official establishing of organized firefighting
- 10. the world’s first tunnel under a river
Down
- 1. an improvement to London’s sanitation
- 2. a showcase for new inventions at the Crystal Palace
- 3. a new way to play a sport with a ball and racquet
- 4. an advancement in ocean travel
- 7. a way to provide clean water to many
- 8. a holiday message sender
- 9. communication innovation that connected people across Britain