Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_1217448_1 ( first_appearance VARCHAR, character_s_ VARCHAR )

### Question ###
what's the first appearance where character(s) is iron man

### Accurate SQL ###

SELECT first_appearance FROM table_1217448_1 WHERE character_s_ = "Iron Man"