Answer:
The design principle of emphasis
Explanation:
1. March 31, 1732
2. May 31, 1809
3. Baron Carl Josef Fürnberg
4. Reutter's family
5. 1740
6. His brother Michael
I don't know the rest, sorry!
Well neon, cripped hair, and legwarmers can be 80's. And a long round skirt with a white t shirt and a ponytail with a bow can be 50's
The answer for number 10 is Napolean III