CREATE TABLE table_204_212 (id DECIMAL, "wager" TEXT, "winner" TEXT, "loser" TEXT, "location" TEXT, "date" TEXT, "notes" TEXT)

which date was the wager not hair ?
SELECT "date" FROM table_204_212 WHERE "wager" <> 'hair'
SELECT "date" FROM "table_204_212" WHERE "wager" <> 'hair'