What is associated with: by 1980 a global vaccination effort led to the virtual eradication of this the only time thats been done to a germ?

What is associated with: by 1965 this teenage austrian was so muscular he was named junior mr europe? What is associated with: by 1966 the air force had logged 10147 sightings of these but didnt believe any? What is associated with: by 1970 this former harvard professor 60s psychedelic guru was on the run living as a fugitive… What is associated with: by 1976 these anabolic aids were banned from use by olympic competitors? What is associated with: by 2003 there were 65 facilities for this type of power in the us generating about 20 of our e… What is associated with: by 2005 germany hopes to have this type of bullet train in operation on a berlin to hamburg ro… Based on the clue 'by 240 bc a roamin roman could ease on down this r...', what is the answer? What is associated with: by 5 games to 4 the kansas city monarchs won the first negro version of this in 1924?