...coming from Dolphins Stadium, one of only three remaining grounds in MLB (and the only one left in the National League - the others are in Minnesota and Oakland) also used by an NFL team...opened in 1988, the last of the so-called 'multi-purpose stadiums' (translation: football stadium more or less adaptable for baseball) so popular in the 60's and 70's - in the Senators' last season in 1971, 15 of the then-24 MLB teams played in such joint-use facilities (16 if you include Milwaukee, since the Packers were still playing three home matches a season there; this ended in 1994).
How times have changed - for the better (for both sports really, but especially baseball).