What is associated with: as their name suggests these diapers introduced in 1978 cling to the body?

What is associated with: as the year 1450 dawned on the christian calendar it was year 5210 on this one? Based on the clue 'as their bordering countries are all this adjectiv...', what is the answer? Based on the clue 'as their name implies disguises were a usual eleme...', what is the answer? Based on the clue 'as their name indicates these schools were establi...', what is the answer? Based on the clue 'as their name suggests these female reproductive o...', what is the answer? Based on the clue 'as their official birds alberta chose the great ho...', what is the answer? Based on the clue 'as their patron saint st erasmus also known by thi...', what is the answer? What is associated with: as there was another album by that title this classic from 1973 was at one point going to be c…