Context: In 1970 Margaret Thatcher became Secretary of State for Education of the new Conservative government. She ended the compulsion on local authorities to convert, however, many local authorities were so far down the path that it would have been prohibitively expensive to attempt to reverse the process, and more comprehensive schools were established under Mrs Thatcher than any other education secretary.

Question: Who was made Secretary of State for Education in 1970?
Answer: Margaret Thatcher

Question: What kind of school did Thatcher end the compulsion for existing schools to convert to?
Answer: comprehensive

Question: What party was in power when Margaret Thatcher was made Secretary of State for Education?
Answer: Conservative

Question: Who wasn't made Secretary of State for Education in 1970?
Answer: Unanswerable

Question: Who was made Secretary of State for Education in 1972?
Answer: Unanswerable

Question: What kind of school didn't Thatcher end the compulsion for existing schools to convert to?
Answer: Unanswerable

Question: What kind of school did Thatcher start the compulsion for existing schools to convert to?
Answer: Unanswerable

Question: What party wasn't in power when Margaret Thatcher was made Secretary of State for Education?
Answer: Unanswerable