What is associated with: 57 people died when this volcano in the cascade range erupted in 1980?

Based on the clue '56 miles from hopewell virginia is this city that ...', what is the answer? Based on the clue '560 guests 200 million tv viewers watched sophie ...', what is the answer? What is associated with: 5600 year old samples of this movie treat have been found in new mexico caves? Based on the clue '57 of the 150 of these were meant to be accompanie...', what is the answer? What is associated with: 5760 grains in troy weight or 7000 grains in avoirdupois weight? What is referred to by '58 down dispatched 4'? Based on the clue '580 sites were visited before colorado springs was...', what is the answer? What is associated with: 59 in 1921 with the new york yankees?