CREATE TABLE table_10906 ("Home team" TEXT, "Home team score" TEXT, "Away team" TEXT, "Away team score" TEXT, "Venue" TEXT, "Crowd" FLOAT, "Date" TEXT)

When did fitzroy play at home?
SELECT "Date" FROM table_10906 WHERE "Home team" = 'fitzroy'
SELECT "Date" FROM "table_10906" WHERE "Home team" = 'fitzroy'