Based on the clue 'at 15 i set my heart on learning wrote this great ...', what is the answer?

What is associated with: at 14410 feet this volcano is washington states highest point? What is associated with: at 14433 feet colorados mount elbert is the highest peak in this mountain chain? What is associated with: at 14433 feet mt elbert in this state is a real rocky mountain high its the highest peak in th… What is associated with: at 14495 feet this peak is californias highest point? What is associated with: at 15 in 1991 judit polgar became the youngest person one of the few women to attain this rank? Based on the clue 'at 15 lady jane grey was imprisoned in this fortre...', what is the answer? Based on the clue 'at 15 on the modified mohs scale this substance st...', what is the answer? Based on the clue 'at 15 ovids metamorphoses topped the length of thi...', what is the answer?