CREATE TABLE table_name_79 (date VARCHAR, opposing_teams VARCHAR, venue VARCHAR)

What is Date, when Opposing Teams is 'Australia', and when Venue is 'Twickenham , London'?
SELECT date FROM table_name_79 WHERE opposing_teams = "australia" AND venue = "twickenham , london"
SELECT "date" FROM "table_name_79" WHERE "australia" = "opposing_teams" AND "twickenham , london" = "venue"