QUESTION: Generate a question with a factual answer?

ANS: In what decade were breakthroughs made that brought in the modern era of GaN-based optoelectronic devices?

QUESTION: Generate a question with a factual answer?

ANS: On what street in New York was GE headquartered before moving to Fairfield?

QUESTION: Generate a question with a factual answer?

ANS: Who sent the first known letter from North America?

QUESTION: Generate a question with a factual answer?

ANS:
What did Robert Blumenschine propose?