CREATE TABLE table_21534 ("Game" FLOAT, "Date" TEXT, "Team" TEXT, "Score" TEXT, "High points" TEXT, "High rebounds" TEXT, "High assists" TEXT, "Location Attendance" TEXT, "Record" TEXT)

What dates did Chris Bosh (18) score the high points?
SELECT "Date" FROM table_21534 WHERE "High points" = 'Chris Bosh (18)'
SELECT "Date" FROM "table_21534" WHERE "High points" = 'Chris Bosh (18)'