Table: cowboys_1985
Columns: week
date
opponent
result
game_site
nfl_recap
attendance

Question: What is the date of the game in a week earlier than 10 played in Texas stadium agains the Atlanta Falcons?
SQL: SELECT "date" FROM cowboys_1985 WHERE "week" < 10 AND "game_site" = 'texas stadium' AND "opponent" = 'atlanta falcons'