Marriage of Figaro (1786), Don Giovanni (1787), and Cossi van tutte (All Women Behave Like This, 1790)
The attacker claimed he and Newman completed "Who is afraid of Red, Yellow, and Blue" together and hated how the restoration was done. However, it wasn't up when he went, so he took out a knife and destroyed Cathedra. I do not remember his name. I believe it was in 1997?
Answer:
light, the changes of light, and how it affected objects
Explanation:
that's it :)
