Which Seattle Mariner hit 56 home runs in 1997?

The release of 52 hostages from which country on January 20, 1981, made world headlines? Which Broadway musical asks "525,600 minutes, how do you measure a year?" Which Roman emperor, who ruled from AD 54 to 68, was said to have "fiddled while Rome burned"? Which carmaker has built the 550 Spyder, the 944 and the Boxster? 5,600-year-old samples of which movie snack were found in New Mexico's Bat Cave? 57 people died when which Cascade Range volcano erupted in 1980? What unit equals 5,760 grains in troy weight or 7,000 grains in avoirdupois weight? Which New York Yankee hit 59 home runs in 1921?